首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   164篇
  免费   13篇
  国内免费   2篇
儿科学   2篇
妇产科学   22篇
基础医学   26篇
口腔科学   1篇
临床医学   26篇
内科学   28篇
皮肤病学   4篇
神经病学   4篇
特种医学   29篇
外科学   2篇
综合类   8篇
预防医学   6篇
药学   10篇
中国医学   2篇
肿瘤学   9篇
  2021年   5篇
  2020年   2篇
  2019年   2篇
  2018年   6篇
  2017年   1篇
  2016年   3篇
  2015年   7篇
  2014年   4篇
  2013年   14篇
  2012年   6篇
  2011年   12篇
  2010年   3篇
  2009年   12篇
  2008年   12篇
  2007年   7篇
  2006年   7篇
  2005年   4篇
  2004年   6篇
  2003年   5篇
  2002年   1篇
  2001年   2篇
  2000年   2篇
  1999年   4篇
  1998年   3篇
  1997年   6篇
  1995年   1篇
  1994年   3篇
  1993年   1篇
  1992年   1篇
  1989年   3篇
  1988年   4篇
  1987年   4篇
  1986年   3篇
  1985年   4篇
  1984年   5篇
  1983年   2篇
  1982年   3篇
  1981年   2篇
  1979年   1篇
  1977年   3篇
  1976年   2篇
  1941年   1篇
排序方式: 共有179条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
In almost all societies in the world there is an increase in sexual activity among young persons (10-24 years). There is a need for contraceptive use among them to prevent high risk unintended pregnancies. This study was carried out to determine the contraceptive prevalence among young women in Nigeria. The study population was 832 young women between the ages of 15 and 24 years. Only 11.1% of the respondents had ever used contraceptives although 63.2% of them had had sexual intercourse. Contraceptive usage was significantly higher (p<0.05) among the single sexually active women (38.5%) than among the married women (7.7%). Only 7.3% of respondents are currently using a contraceptive method. The main methods in use were condoms and pills. There is an unmet need for contraceptives among young women in Nigeria. It is necessary to improve these young women's abilities to protect themselves against unwanted pregnancies.  相似文献   
6.
7.
8.
van Schaik  JP; Hawkins  IF  Jr 《Radiology》1985,155(3):829-830
A new technique is described for reversing the direction of the catheter tip during translumbar aortography, without the need for partial withdrawal of the catheter from the aortic lumen. The method ensures optimal delivery of contrast medium at the desired level, while avoiding the risk of retroperitoneal bleeding or dislodgement during catheter manipulation.  相似文献   
9.
This prospective hospital-based study was carried out to understand the characteristics of abortion care seekers in south-western Nigeria. Information was obtained from a total of 1876 women seeking abortion at hospitals using a questionnaire. The results show that majority (60%) were between the ages of 15 and 24 years, of which adolescents between the ages of 15 and 19 years constituted 23.7%. Most (63.2%) of the respondents were unmarried, but married women also constituted a significant proportion (30.2%) of the abortion care seekers. Students were the single highest group, while the predominant economic activity was trading (26.7%). Respondents terminated their pregnancies mainly because they were students or because they did not desire to have children. Most (35.5%) of the women were introduced to providers by friends. Average contraceptive prevalence among the abortion care seekers was 27.4%. It is obvious from the results that young persons, especially in-school adolescents, should be targeted for comprehensive sexuality education especially in view of the current HIV/AIDS pandemic.  相似文献   
10.
Significant developments have occurred in the field of sexual and reproductive health and rights (SRHR) globally in the last decade. However, this is yet to translate into improved status of SRHR in developing countries. One of the strategies recognised worldwide for addressing the poor status of SRHR is human capacity building at all levels. A pilot work conducted in two federal university medical schools identified a major gap in knowledge among medical students on issues related to SRHR. This called for a review of the curriculum to enable the incorporation of relevant and topical issues. This article describes the processes leading to the adoption of the Nigerian medical schools' sexual and reproductive health and rights curriculum. The exercise culminated in the identification of internal and external stakeholders and needs of the Nigerian medical schools in teaching reproductive health. The participation of lecturers (bottom-up approach) brought about a sense of ownership of the document and promoted the broad consultation and participation of all participants. It also identified capacity building and the need for evaluation as a basis for further review.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号