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The aim of the study was to determine the influence of RET, p27 and cyclin D1 on regional lymph node metastases in papillary microcarcinoma. The analysis included 70 patients with papillary thyroid microcarcinoma that underwent surgery at Split University Hospital Center between 1999 and 2001. Immunohistochemistry was performed on formalin-fixed, paraffi n-embedded tissue by the RET, p27 and cyclin D1 antibodies. Quantification was based on the intensity and distribution of nuclear staining, dividing tumors into those that showed expression (expressors) and those that showed no expression (non-expressors). Univariate analysis using χ²-test and Fisher exact test was performed with the level of statistical significance set at p

Aim The human model of pulmonary embolism is currently unavailable.The objective of this study was to evaluate whether venousinert gas lung embolization after diving simulation is a modelof pulmonary embolism.Methods Twelve recreational divers underwent two single aircompressions, each in different post-compression posture, in thechamber to 30 m/40 min bottom time with standard decompressionand ascent rates. Cardiopulmonary variables and precordialbubble grade were measured in sitting or lying supine before and40, 70 and 100 min after the respective compression.Results The volume of airways decreased post-compression in supine(24%, p