医学 >>> 基础医学 临床医学 口腔医学 性科学 肿瘤学 预防医学与卫生学 军事医学与特种医学 药学 中医学与中药学 生物医学工程
搜索结果: 1-5 共查到医学 sexual intercourse相关记录5条 . 查询时间(0.078 秒)
Background: Pregnancy is one of the most critical periods in women's lives. Sexual relationships change in this period. Monitoring of uterine contractions has been shown increase in uterine activity a...
CONTEXT: Recognition of the different social, psychological and behavioral contexts within which adolescents initiate sexual activity broadens the understanding of teenage sexual behavior beyond the t...
Context: The quality of parent-child communications about sex and sexuality appears to be a strong determinant of adolescents' sexual behavior. Evaluations of interventions aimed at improving such com...
In clinical programs of assisted reproduction involving infertile males, it is essential to obtain semen of maximum quality. To evaluate ways of achieving this objective, and to assess the fertilizi...
Clinicians and educators alike seek to understand the associations between forced sex and depression, substance abuse, suicide, and sexually transmissible diseases. We sought to determine whether sel...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...