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   12235篇
  免费   1027篇
  国内免费   98篇
耳鼻咽喉   13篇
儿科学   99篇
妇产科学   914篇
基础医学   826篇
口腔科学   101篇
临床医学   1728篇
内科学   1379篇
皮肤病学   141篇
神经病学   340篇
特种医学   138篇
外国民族医学   1篇
外科学   998篇
综合类   1288篇
现状与发展   3篇
一般理论   2篇
预防医学   3866篇
眼科学   15篇
药学   721篇
  13篇
中国医学   141篇
肿瘤学   633篇
  2024年   29篇
  2023年   202篇
  2022年   403篇
  2021年   542篇
  2020年   554篇
  2019年   521篇
  2018年   483篇
  2017年   483篇
  2016年   528篇
  2015年   405篇
  2014年   749篇
  2013年   1394篇
  2012年   731篇
  2011年   735篇
  2010年   612篇
  2009年   594篇
  2008年   575篇
  2007年   534篇
  2006年   442篇
  2005年   408篇
  2004年   353篇
  2003年   307篇
  2002年   268篇
  2001年   252篇
  2000年   216篇
  1999年   157篇
  1998年   157篇
  1997年   140篇
  1996年   103篇
  1995年   65篇
  1994年   58篇
  1993年   39篇
  1992年   45篇
  1991年   39篇
  1990年   30篇
  1989年   18篇
  1988年   19篇
  1987年   27篇
  1986年   14篇
  1985年   22篇
  1984年   26篇
  1983年   17篇
  1982年   10篇
  1981年   13篇
  1980年   8篇
  1979年   9篇
  1978年   5篇
  1977年   9篇
  1976年   6篇
  1967年   2篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
目的观察前置胎盘孕妇的恐惧心理反应,做好前置胎盘孕妇的心理护理。方法由孕妇自行填写CES-D和SA2量表,进行统计学分析。结果70.2%的前置胎盘孕妇具有恐惧心理。结论在妊娠过程应提高孕妇认知水平,加强心理护理,有助于她们顺利渡过妊娠期。  相似文献   
7.
中国女性的生殖健康权力   总被引:1,自引:1,他引:0  
<正> 中国的计划生育工作和人口控制的进程取得了举世瞩目的成就,中国妇女在这方面做出了巨大的贡献。在目前的生育调节工作中,妇女承担了几乎全部的生育调节和养育子女的责任及义务。社会、家庭甚至妇女本身都默认和接受了这种程式化的规范。  相似文献   
8.
In a long-term follow-up study of 44 female alcoholics, a family history of alcoholism was related to younger age of onset of problem drinking, but did not necessarily imply a poorer outcome within this highly selected group of individuals. Alcoholism in father and his family was not related to either antisocial or borderline personality disorder nor outcome. However, alcoholism in mother and her family correlated with both borderline personality disorder and a significantly poorer outcome. The findings are discussed within different frames of reference, considering genetic mechanisms, psychodynamic factors and family systems theory.  相似文献   
9.
We evaluated anti-Toxoplasma gondii IgM-reactive pregnant women seen at a high-risk pregnancy outpatient clinic. From March 2005 to January 2008 in Paraná, Brazil, pregnant women seen by the Brazilian Public Health System, in any gestational period, who were anti-T. gondii IgM-positive, were followed. Clinical symptoms were noted, and tests performed including IgA, IgG avidity, ultrasonogram, and amniocentesis (PCR/inoculation in mice). Of 75 patients, 8 showed low, 3 intermediate and 31 high IgG avidity. Of those who underwent the avidity test, 31 (70.5%) were in the second trimester of pregnancy. Thirty-two (42.7%) pregnant women received specific treatment. Six received triple combination treatment; in three, tachyzoites were isolated, although only one was PCR-positive, showing changes in the cerebral sonogram, borderline IgA, and the Sabin tetrad. One fetus died, and one non-reactive IgM pregnant woman showed ocular recurrence. The municipality of residence, contact with cats during adulthood, and ingestion of unpasteurized milk were shown to be important risk factors. Congenital toxoplasmosis was observed in a pregnancy referred late for treatment. Follow-up of children born to mothers with diagnosed or suspected acute toxoplasmosis is crucial in the management of the changes that toxoplasmosis may cause.  相似文献   
10.
Abstract:   A 19-year-old woman presented at our hospital with acute urinary retention in September 2005. She had experienced the same chief complaint twice previously. She had used non-steroidal anti-inflammatory drugs before acute urinary retention. The results of physical examinations were unremarkable, and her neurologic signs were not remarkable. The basic laboratory test values were all normal and a psychiatric assessment indicated that her symptoms were not psychogenic. Magnetic resonance imaging was carried out, but revealed only a slight bulging in the L3/L4/L5 disk. Water cystometry showed acontractile detrusor. We made a diagnosis of acute urinary retention as a result of non-steroidal anti-inflammatory drugs because of her use of such drugs before the development of symptoms on multiple occasions. This patient was regularly followed up as an outpatient, and she could void smoothly in February 2006. This is the first report which acute urinary retention associated with non-steroidal anti-inflammatory drugs in Japan.  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