15 results on '"G. Bilardi"'
Search Results
2. AuroraScience
- Author
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S. A. Beccara, R. Alfieri, F. Artico, G. Bilardi, M. Brambilla, F. Boso, V. M. Cappelleri, A. Cestaro, E. Cilia, M. Cristoforetti, M. Dalla Brida, M. D'Antonio, F. Di Renzo, DESTRI, CLAUDIO, P. Faccioli, C. Fantozzi, P. Fontana, G. Gargano, L. Giusti, M. Grossi, A. Y. Illarionov, R. Leonardi, W. Leidemann, G. Marchesini, E. Milani, C. Moser, E. Onofri, G. Orlandini, F. Pederiva, F. Peruch, E. Peserico, A. Pietracaprina, M. Pivanti, F. Pozzati, G. Pucci, A. Richter, M. Sega, S. F. Schifano, M. Schimd, M. Schwarzd, L. Scorzato, H. Simma, T. Skrbic, E. Tagliavini, M. Traini, R. Tripiccione, R. Velasco, P. Verrocchio, F. Versaci, L. Yuan, N. Zago, RAPUANO, FEDERICO, Beccara, S, Alfieri, R, Artico, F, Bilardi, G, Brambilla, M, Boso, F, Cappelleri, V, Cestaro, A, Cilia, E, Cristoforetti, M, Dalla Brida, M, D'Antonio, M, Di Renzo, F, Destri, C, Faccioli, P, Fantozzi, C, Fontana, P, Gargano, G, Giusti, L, Grossi, M, Illarionov, A, Leonardi, R, Leidemann, W, Marchesini, G, Milani, E, Moser, C, Onofri, E, Orlandini, G, Pederiva, F, Peruch, F, Peserico, E, Pietracaprina, A, Pivanti, M, Pozzati, F, Pucci, G, Rapuano, F, Richter, A, Sega, M, Schifano, S, Schimd, M, Schwarzd, M, Scorzato, L, Simma, H, Skrbic, T, Tagliavini, E, Traini, M, Tripiccione, R, Velasco, R, Verrocchio, P, Versaci, F, Yuan, L, and Zago, N
- Subjects
Lattice QCD, High Performance Computing - Published
- 2010
3. Memory requirements of first-order digital filters
- Author
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F.P. Preparata and G. Bilardi
- Subjects
Adaptive filter ,Half-band filter ,Ideal (set theory) ,Control theory ,Filter (video) ,Signal Processing ,Prototype filter ,Electrical and Electronic Engineering ,Network synthesis filters ,Algorithm ,Upper and lower bounds ,Digital filter ,Mathematics - Abstract
The authors pose the question of the memory requirements of digital filters as determined by filter parameters and desired accuracy, and present a full analysis for first-order filters. The main feature of this investigation is that lower bounds are obtained with no structural assumption on the finite-state machine selected to approximate the ideal filter. Two specific realizations are discussed, a classical state-roundoff implementation and a higher order FIR-approximation. Upper and lower bounds on memory requirements are shown to be in remarkable agreement. >
- Published
- 1992
4. Observations on universality and portability in high-performance computing
- Author
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G. Bilardi
- Subjects
Software portability ,Theoretical computer science ,Memory hierarchy ,Computer science ,Portability testing ,business.industry ,Component-based software engineering ,Software development ,Concurrent computing ,business ,Software metric ,Universality (dynamical systems) - Abstract
The universality of the hardware model and the portability of the software model are two central themes in high-performance computing, especially as parallelism and memory hierarchy force a gradual but irreversible departure from the classical, sequential paradigm of computing. This paper considers the possibility of formulating an analytical, quantitative approach to the study of universality and portability, offering a perspective on known results and indicating avenues for further investigation.
- Published
- 2005
5. An Address Dependence Model of Computation for Hierarchical Memories with Pipelined Transfer
- Author
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Kattamuri Ekanadham, Pratap Pattnaik, and G. Bilardi
- Subjects
Addressing mode ,Flat memory model ,Physical address ,Computer science ,Model of computation ,Memory architecture ,Cache-only memory architecture ,Interleaved memory ,Sorting ,Parallel computing ,Memory map ,CAS latency - Abstract
Powerful memory models, including hierarchies with block transfer or with pipeline of accesses have been proposed in theory and are partially realized in commercial systems, to reduce the average memory overhead per operation. However, even for such powerful models, there are simple direct flow programs, with no branches and no indirect addressing that require non-constant overhead, resulting in superlinear execution time. Indeed, we characterize a wide, natural class of machines, including nearly all previously proposed models, and develop a technique, which yields superlinear time lower bounds on any machine of this class, for suitable direct-flow computations. We propose the address dependence model (ADM) for machines with pipelined memory hierarchies, where any direct-flow program runs in time linear in the number of executed instructions. As an example of the capabilities of ADM for algorithms non amenable to direct-flow formulation, we show how to implement quicksort in time proportional to the number of executed comparisons, whose expected value is O(n log n), even on memories where the latency of address x is a(x)=/spl theta/(x). (In contrast, T=/spl Omega/(n log/sup 2/ n) for sorting in the block transfer model of [A. Aggarwal et al. (1987)].) Finally, we consider the question of physical implementation of ADM and propose an extensible machine design, in which the number of gates and the length of a wire that a signal traverses in one clock period are, within a given technology, independent of system size. Such designs scale with system size (in particular, with memory latency) as well as with technological advancement. We assume aggressive, but feasible [G. Bilardi et al. (2002)], hierarchical memories pipelinable at a constant rate. The main contribution is a novel processor organization capable of fully exploiting such memories.
- Published
- 2005
6. A frontal solver tuned for fully coupled non-linear hygro-thermo-mechanical
- Author
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Bianco, G. Bilardi, F. Pesavento, G. Pucci, and B.A. Schrefler
- Published
- 2003
7. An international Masters in Software Engineering: experience and prospects
- Author
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Richard A. DeMillo, A. Apostolico, F. Bombi, and G. Bilardi
- Subjects
Globalization ,Government ,business.industry ,Computer science ,Engineering education ,Information technology ,Software engineering ,business ,Research center ,Technology management - Abstract
Describes our experience with a newly-established international partnership between the Software Engineering Research Center (SERC), a university-based National Science Foundation (NSF) sponsored industrial research organization in the United States and an Italian industry-university team based in Padua, Italy. >
- Published
- 2002
8. Status of the AuroraScience Project
- Author
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Beccara, S, Alfieri, R, Artico, F, Bilardi, G, Brambilla, M, Boso, F, Cappelleri, V, Cestaro, A, Cilia, E, Cristoforetti, M, Dalla Brida, M, D'Antonio, M, Di Renzo, F, Destri, C, Faccioli, P, Fantozzi, C, Fontana, P, Gargano, G, Giusti, L, Grossi, M, Illarionov, A, Leonardi, R, Leidemann, W, Marchesini, G, Milani, E, Moser, C, Onofri, E, Orlandini, G, Pederiva, F, Peruch, F, Peserico, E, Pietracaprina, A, Pivanti, M, Pozzati, F, Pucci, G, Rapuano, F, Richter, A, Sega, M, Schifano, S, Schimd, M, Schwarzd, M, Scorzato, L, Simma, H, Skrbic, T, Tagliavini, E, Traini, M, Tripiccione, R, Velasco, R, Verrocchio, P, Versaci, F, Yuan, L, Zago, N, S. A. Beccara, R. Alfieri, F. Artico, G. Bilardi, M. Brambilla, F. Boso, V. M. Cappelleri, A. Cestaro, E. Cilia, M. Cristoforetti, M. Dalla Brida, M. D'Antonio, F. Di Renzo, DESTRI, CLAUDIO, P. Faccioli, C. Fantozzi, P. Fontana, G. Gargano, L. Giusti, M. Grossi, A. Y. Illarionov, R. Leonardi, W. Leidemann, G. Marchesini, E. Milani, C. Moser, E. Onofri, G. Orlandini, F. Pederiva, F. Peruch, E. Peserico, A. Pietracaprina, M. Pivanti, F. Pozzati, G. Pucci, RAPUANO, FEDERICO, A. Richter, M. Sega, S. F. Schifano, M. Schimd, M. Schwarzd, L. Scorzato, H. Simma, T. Skrbic, E. Tagliavini, M. Traini, R. Tripiccione, R. Velasco, P. Verrocchio, F. Versaci, L. Yuan, N. Zago, Beccara, S, Alfieri, R, Artico, F, Bilardi, G, Brambilla, M, Boso, F, Cappelleri, V, Cestaro, A, Cilia, E, Cristoforetti, M, Dalla Brida, M, D'Antonio, M, Di Renzo, F, Destri, C, Faccioli, P, Fantozzi, C, Fontana, P, Gargano, G, Giusti, L, Grossi, M, Illarionov, A, Leonardi, R, Leidemann, W, Marchesini, G, Milani, E, Moser, C, Onofri, E, Orlandini, G, Pederiva, F, Peruch, F, Peserico, E, Pietracaprina, A, Pivanti, M, Pozzati, F, Pucci, G, Rapuano, F, Richter, A, Sega, M, Schifano, S, Schimd, M, Schwarzd, M, Scorzato, L, Simma, H, Skrbic, T, Tagliavini, E, Traini, M, Tripiccione, R, Velasco, R, Verrocchio, P, Versaci, F, Yuan, L, Zago, N, S. A. Beccara, R. Alfieri, F. Artico, G. Bilardi, M. Brambilla, F. Boso, V. M. Cappelleri, A. Cestaro, E. Cilia, M. Cristoforetti, M. Dalla Brida, M. D'Antonio, F. Di Renzo, DESTRI, CLAUDIO, P. Faccioli, C. Fantozzi, P. Fontana, G. Gargano, L. Giusti, M. Grossi, A. Y. Illarionov, R. Leonardi, W. Leidemann, G. Marchesini, E. Milani, C. Moser, E. Onofri, G. Orlandini, F. Pederiva, F. Peruch, E. Peserico, A. Pietracaprina, M. Pivanti, F. Pozzati, G. Pucci, RAPUANO, FEDERICO, A. Richter, M. Sega, S. F. Schifano, M. Schimd, M. Schwarzd, L. Scorzato, H. Simma, T. Skrbic, E. Tagliavini, M. Traini, R. Tripiccione, R. Velasco, P. Verrocchio, F. Versaci, L. Yuan, and N. Zago
- Abstract
AuroraScience is a research project aiming at developing a computer architecture which benefits from both state of the art components/solutions (multi-core processors, liquid cooling, InfiniBand) and a custom network (an FPGA-based implementation of a 3-D torus). We report on the status of the project
- Published
- 2011
9. AuroraScience
- Author
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Beccara, S, Alfieri, R, Artico, F, Bilardi, G, Brambilla, M, Boso, F, Cappelleri, V, Cestaro, A, Cilia, E, Cristoforetti, M, Dalla Brida, M, D'Antonio, M, Di Renzo, F, Destri, C, Faccioli, P, Fantozzi, C, Fontana, P, Gargano, G, Giusti, L, Grossi, M, Illarionov, A, Leonardi, R, Leidemann, W, Marchesini, G, Milani, E, Moser, C, Onofri, E, Orlandini, G, Pederiva, F, Peruch, F, Peserico, E, Pietracaprina, A, Pivanti, M, Pozzati, F, Pucci, G, Rapuano, F, Richter, A, Sega, M, Schifano, S, Schimd, M, Schwarzd, M, Scorzato, L, Simma, H, Skrbic, T, Tagliavini, E, Traini, M, Tripiccione, R, Velasco, R, Verrocchio, P, Versaci, F, Yuan, L, Zago, N, S. A. Beccara, R. Alfieri, F. Artico, G. Bilardi, M. Brambilla, F. Boso, V. M. Cappelleri, A. Cestaro, E. Cilia, M. Cristoforetti, M. Dalla Brida, M. D'Antonio, F. Di Renzo, DESTRI, CLAUDIO, P. Faccioli, C. Fantozzi, P. Fontana, G. Gargano, L. Giusti, M. Grossi, A. Y. Illarionov, R. Leonardi, W. Leidemann, G. Marchesini, E. Milani, C. Moser, E. Onofri, G. Orlandini, F. Pederiva, F. Peruch, E. Peserico, A. Pietracaprina, M. Pivanti, F. Pozzati, G. Pucci, A. Richter, M. Sega, S. F. Schifano, M. Schimd, M. Schwarzd, L. Scorzato, H. Simma, T. Skrbic, E. Tagliavini, M. Traini, R. Tripiccione, R. Velasco, P. Verrocchio, F. Versaci, L. Yuan, N. Zago, RAPUANO, FEDERICO, Beccara, S, Alfieri, R, Artico, F, Bilardi, G, Brambilla, M, Boso, F, Cappelleri, V, Cestaro, A, Cilia, E, Cristoforetti, M, Dalla Brida, M, D'Antonio, M, Di Renzo, F, Destri, C, Faccioli, P, Fantozzi, C, Fontana, P, Gargano, G, Giusti, L, Grossi, M, Illarionov, A, Leonardi, R, Leidemann, W, Marchesini, G, Milani, E, Moser, C, Onofri, E, Orlandini, G, Pederiva, F, Peruch, F, Peserico, E, Pietracaprina, A, Pivanti, M, Pozzati, F, Pucci, G, Rapuano, F, Richter, A, Sega, M, Schifano, S, Schimd, M, Schwarzd, M, Scorzato, L, Simma, H, Skrbic, T, Tagliavini, E, Traini, M, Tripiccione, R, Velasco, R, Verrocchio, P, Versaci, F, Yuan, L, Zago, N, S. A. Beccara, R. Alfieri, F. Artico, G. Bilardi, M. Brambilla, F. Boso, V. M. Cappelleri, A. Cestaro, E. Cilia, M. Cristoforetti, M. Dalla Brida, M. D'Antonio, F. Di Renzo, DESTRI, CLAUDIO, P. Faccioli, C. Fantozzi, P. Fontana, G. Gargano, L. Giusti, M. Grossi, A. Y. Illarionov, R. Leonardi, W. Leidemann, G. Marchesini, E. Milani, C. Moser, E. Onofri, G. Orlandini, F. Pederiva, F. Peruch, E. Peserico, A. Pietracaprina, M. Pivanti, F. Pozzati, G. Pucci, A. Richter, M. Sega, S. F. Schifano, M. Schimd, M. Schwarzd, L. Scorzato, H. Simma, T. Skrbic, E. Tagliavini, M. Traini, R. Tripiccione, R. Velasco, P. Verrocchio, F. Versaci, L. Yuan, N. Zago, and RAPUANO, FEDERICO
- Published
- 2010
10. Mean value of the output of a discrete-time Volterra system driven by a Markov chain (Corresp.)
- Author
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R. Cristi, G. Bilardi, and Gianfranco Cariolaro
- Subjects
Markov chain ,Volterra series ,Process (computing) ,Markov process ,Library and Information Sciences ,Computer Science Applications ,Discrete system ,Matrix (mathematics) ,symbols.namesake ,Nonlinear system ,Discrete time and continuous time ,Control theory ,symbols ,Applied mathematics ,Information Systems ,Mathematics - Abstract
A discrete-time system described by a truncated Volterra series whose input is a Markov chain is considered. A general explicit formula is derived for the mean value of the output process in terms of the transition-probability matrix of the input and of the Volterra kernels.
- Published
- 1985
11. A minimum area VLSI network for O(logn) time sorting
- Author
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G. Bilardi and F. P. Preparata
- Subjects
Discrete mathematics ,Very-large-scale integration ,Interconnection ,Generalization ,Sorting ,Parallel computing ,computer.file_format ,Chip ,Upper and lower bounds ,Computer Science::Hardware Architecture ,Parallel sorting ,Executable ,computer ,Mathematics - Abstract
A generalization of a known class of parallel sorting algorithms is presented, together with a new interconnection to execute them. A VLSI implementation is also proposed, and its area-time performance is discussed. It is shown that an algorithm in the class is executable in O(logn) time by a chip occupying O(n2) area. The design is a typical instance of a “hybrid architecture”, resulting from the combination of well-known VLSI networks as the orthogonal trees and the cube-connected-cycles; it also provably meets the AT2=omegan2log2n) lower bound for sorters of n words of length (1+\epsilon)logn(\epsilon > O).
- Published
- 1984
12. [Cancer of the kidney. Natural history and therapeutic problems]
- Author
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R, Paolucci, V, Delledonne, C, Balaban, C, Zola, and G, Bilardi
- Subjects
Male ,Postoperative Care ,Humans ,Lymph Node Excision ,Antineoplastic Agents ,Female ,Testosterone ,Adenocarcinoma ,Nephrectomy ,Carcinoma, Papillary ,Kidney Neoplasms ,Progesterone ,Neoplasm Staging - Abstract
Radical nephrectomy with initial ligation of the renal artery and removal en bloc of the perirenal fat and lumboaortic lymphadenectomy was carried out according to the technique of Robson (1969) in 10 cases at the University of Parma 1st Surgical Clinic between 1976 and 1978. The usefulness and superiority of the technique were demonstrated in this albeit small series, which included four stage I, two stage II, one stage III, and four stage IV patients, according to the classification of Flocks et al. Supplementary antiblastic and/or hormonal treatment was given, except in stage I cases. 1.4 mg/m2 Velbe i.v. (1st day) followed by 80 mg/m2 BCNU i.v. (2nd, 3rd, 4th days) was of no avail, whereas progesterone (Depot-provera 200-500 mg/day for 1-3 months) and testosterone propionate (300 mg/week) still seem to be effective. Improvements in this oncological sector, however, are geared to the outcome of radical nephrectomy.
- Published
- 1981
13. Developing supervision capacity for training rural generalist doctors in small towns in Victoria.
- Author
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O'Sullivan BG, Martin P, Taylor CJ, Lodding M, Bilardi G, Dix L, Phillips J, Hutchinson M, Van Wollingen R, and Wallace G
- Subjects
- Cities, Humans, Rural Population, Victoria, Physicians, Rural Health Services
- Abstract
Introduction: Rural generalist (RG) doctors are broadly skilled to provide comprehensive primary care, emergency and other specialist services in small, distributed communities where access is otherwise limited because of distance, transport and cost limitations. In Victoria, Australia, the Victorian Rural Generalist Pathway (VRGP) represents a significant state-wide investment in training and growing the next generation of RGs. The first step of the VRGP is well established through the Rural Community Internship Training program, which commenced in Victoria in 2012-2015; however, the second step (RG2) requires expansion by growing supervised learning in small rural communities where RGs will eventually work. This project aimed to explore enablers and barriers to the supervision of RG2 learners across a core generalist curriculum in distributed towns in three rural Victorian regions., Methods: Data were collected between June and August 2021 through semistructured, in-depth interviews conducted via Zoom or telephone with general practitioners (GPs) and health service executives from small and big health services in the Hume, Loddon Mallee and Barwon South West regions. Interview questions were shared prior to the interview to support reflective responses. Interviews were an hour in length and data were transcribed verbatim and analysed using an inductive thematic analysis process. The research team met regularly throughout the analysis process to refine theme development, test assumptions, and reduce any subjective biases. This study had ethical approval from Monash University., Results: Thirty-one participants, including 13 GPs working at RG scope in MMM 4-7 and 18 health service executives, engaged with RGs consented and participated. The supervision of RG2s was affected by multilayer enablers and barriers. Enablers that emerged were having a critical mass of fellowed doctors using viable models to supervise RG2s, funding for the supervision of RG2s, generalist learning opportunities, and coordination and case management. Barriers included insufficient doctors to supervise, the cost and risk of supervising RG2s, developing rural training but finding it was unattractive to trainees, and a reliance on rotational staff, which limited supervision on the ground. Different regions experienced enablers and barriers to different degrees., Conclusion: Building supervised training for RG2 learners across a generalist scope in distributed rural communities is a complex undertaking, with multilayered enablers and barriers at play. A range of issues are beyond the control of the VRGP and rely on advocacy and collaboration with stakeholders. The major themes suggest that supervised learning should be addressed at multiple levels of the system, the community, clinical settings, and clinicians. Expanding supervision of RG2s across core generalist curriculum in small rural communities will also require a regionally guided long-term vision and stepwise planning. With ongoing commitment to RG-led care, it is possible to achieve high-quality supervision at the RG2 stage, retain RGs on the pathway, and produce skilled RG trainees to serve Victoria into the future.
- Published
- 2022
- Full Text
- View/download PDF
14. Immediate occlusal loading of one-piece zirconia implants: five-year radiographic and clinical evaluation.
- Author
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Grassi FR, Capogreco M, Consonni D, Bilardi G, Buti J, and Kalemaj Z
- Subjects
- Adult, Aged, Ceramics, Crowns, Dental Implants, Dental Plaque Index, Dental Restoration Failure, Female, Gingival Recession, Humans, Longitudinal Studies, Male, Middle Aged, Postoperative Period, Radiography, Stress, Mechanical, Treatment Outcome, Alveolar Bone Loss diagnostic imaging, Bone Remodeling, Dental Implants, Single-Tooth, Dental Prosthesis Design methods, Zirconium chemistry
- Abstract
Purpose: To evaluate radiographic and clinical outcomes of immediate occlusally loaded one-piece zirconia implants after 5 years of follow-up., Materials and Methods: This longitudinal clinical investigation included patients older than 18 years, in need of implant-supported single-unit dental rehabilitations. One-piece zirconia in healed and postextraction sites and immediately restored with provisional crowns in light occlusal contact. Definitive zirconia-ceramic restorations were delivered 3 to 4 months after surgery. Primary estimated outcomes were implant survival and success. Periapical radiographs were taken at implant insertion (T0), after 1 year (T1), and after 5 years (T2) to assess marginal bone loss (MBL). Probing depth (PD), modified Bleeding Index (mBI), modified Plaque Index (mPI), and gingival recession (REC) were also measured repeatedly for implants and reference teeth. Changes in parameters over time were assessed using the Wilcoxon signed rank test. In addition, multilevel mixed effects linear and logistic regression models were fitted to take into account within-subject correlations and baseline values., Results: Thirty-two implants were inserted in postextraction and healed sites (n = 16 of each) in 17 patients. One immediate implant was lost after 3 months, and one patient with one implant dropped out after T1. Therefore, the cumulative survival rates were 96.9% at T1 and 96.8% at T2 (4.3 to 6 years). No significant differences were observed in mean MBL between immediate and delayed implants at either T1 or T2. Moreover, different baseline parameters (sex, arch, implant location, smoking habits, grafting) did not show any influence on MBL at either time. In general, for all clinical parameters (PD, mBI, mPI, REC), implants seemed to perform similar to if not better than natural teeth., Conclusion: Radiographic and clinical evaluations after 5 years showed satisfactory amounts of MBL and acceptable soft tissue health.
- Published
- 2015
- Full Text
- View/download PDF
15. [Cancer of the kidney. Natural history and therapeutic problems].
- Author
-
Paolucci R, Delledonne V, Balaban C, Zola C, and Bilardi G
- Subjects
- Adenocarcinoma surgery, Antineoplastic Agents administration & dosage, Carcinoma, Papillary surgery, Female, Humans, Kidney Neoplasms pathology, Lymph Node Excision, Male, Neoplasm Staging, Nephrectomy, Postoperative Care, Progesterone administration & dosage, Testosterone administration & dosage, Kidney Neoplasms surgery
- Abstract
Radical nephrectomy with initial ligation of the renal artery and removal en bloc of the perirenal fat and lumboaortic lymphadenectomy was carried out according to the technique of Robson (1969) in 10 cases at the University of Parma 1st Surgical Clinic between 1976 and 1978. The usefulness and superiority of the technique were demonstrated in this albeit small series, which included four stage I, two stage II, one stage III, and four stage IV patients, according to the classification of Flocks et al. Supplementary antiblastic and/or hormonal treatment was given, except in stage I cases. 1.4 mg/m2 Velbe i.v. (1st day) followed by 80 mg/m2 BCNU i.v. (2nd, 3rd, 4th days) was of no avail, whereas progesterone (Depot-provera 200-500 mg/day for 1-3 months) and testosterone propionate (300 mg/week) still seem to be effective. Improvements in this oncological sector, however, are geared to the outcome of radical nephrectomy.
- Published
- 1981
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