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To study, in a large prospective cohort study of 2000 Chinese men 65 to 92 years of age in Hong Kong, the role of lifestyle and medical risk factors for moderate to severe lower urinary tract symptoms (LUTS). Previous epidemiologic studies evaluating the risk factors for LUTS were mainly conducted in non-Chinese populations.After excluding men with prostate or bladder cancer or surgery and those who...
To perform a comparison to determine which of two methods of partial urethral ligation produces the most consistent outcome and fewest side effects. Such a study has not been previously reported. Partial urethral ligation is a means of causing reproducible bladder outlet obstruction. In the male rat model, partial urethral obstruction can be performed either by perineal incision and bulbous urethral...
Leydig cell tumors of the testis are the underlying cause in about 10% of the cases of precocious puberty in boys. Leydig cell hyperplasia is a less well-characterized cause, with an undocumented frequency. We describe a boy with precocious puberty associated with ipsilateral testicular enlargement and focal Leydig cell hyperplasia with spermatogenesis limited to the local adjacent testicular tissue.
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