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xing gong neng de zeng ling xing bian hua
Author(s): 
Pages: 12-14
Year: Issue:  2
Journal: Chinese Community Doctors

Keyword:  性功能低下增龄变化性行为雌激素雌二醇性能力更年期综合征组织学改变内分泌功能雄激素;
Abstract: <正> 一、性腺功能的增龄变化 (一)睾丸功能 1.生精能力及性行为性活动能力随着增龄变化而降低。人类性功能的改变及睾丸组织学改变有着直接的关系。睾丸的容积自50岁开始逐渐缩小,60~70岁时最为明显;另一方面,睾丸重量自40
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