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The accuracy of the Geographic Coordinate database (GCDB) is best understood through an understanding of the collection procedures and data sources. The rigorous analysis used to create the spatial data representing the township provides us with coordinate positions and an estimate of uncertainty in those coordinates for corners of the U.S. Public Lands Survey System (PLSS). Recently a project has been undertaken at the New Mexico State University (NMSU) which involved an extensive PLSS retracement. This article discusses the findings of this survey and will illustrate the dynamic nature of the GCDB design which has ability to be updated over time as a key design element. [ABSTRACT FROM AUTHOR]

Objective: To develop a classification that takes deep infiltrating endometriosis into account, the ENZIAN score was introduced. The ENZIAN classification supplements the revised American Fertility Society (AFS) score with regard to the description of deep infiltrating endometriosis, retroperitoneal structures, and other organs. The null hypothesis was that classifying a lesion by the revised AFS as well as the ENZIAN system is not meaningful, because the two systems express different locations., Design: Retrospective., Setting: Hospital admissions., Patient(s): Two hundred nineteen women admitted for endometriosis., Intervention(s): Surgical interventions., Main Outcome Measure(s): Classification of the severity of endometriosis according to the revised AFS and the ENZIAN classification, focusing on the distribution pattern in deep infiltrating endometriosis, and the identification of duplicate classifications of the same lesions in the revised AFS as well as the ENZIAN systems., Result(s): Deep infiltrating endometriosis was diagnosed in 160 of 219 patients (73%). These patients had 236 lesions of deep infiltrating endometriosis, which were classified by ENZIAN as follows: compartment a (vertical): 26%; compartment b (horizontal): 41%; compartment c (dorsal): 24%; uterine adenomyosis: 4%; bladder disease: 2%; ureter disease: 1%; and bowel disease: 2%. The severity of deep infiltrating endometriosis according to ENZIAN (grades 1 = mild to 4 = severe) was as follows: grade 1: 45%; grade 2: 26%; grade 3: 19%; grade 4: 10%. Fifty-eight patients were classified according to ENZIAN although they did not fulfill the criteria of deep infiltrating endometriosis and had previously been classified according to the revised AFS classification. Adaptation of the ENZIAN score would reduce the diagnoses of deep infiltrating endometriosis by 36% (95% confidence interval [CI] 29%-44%)., Conclusion(s): The ENZIAN score is a helpful aid to describe deep infiltrating endometriosis, but needs to be adapted., (Copyright © 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)