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   43529篇
  免费   7826篇
  国内免费   166篇
耳鼻咽喉   829篇
儿科学   1570篇
妇产科学   1327篇
基础医学   3535篇
口腔科学   3006篇
临床医学   6826篇
内科学   9025篇
皮肤病学   771篇
神经病学   4160篇
特种医学   1505篇
外科学   6229篇
综合类   338篇
现状与发展   12篇
一般理论   14篇
预防医学   5653篇
眼科学   642篇
药学   1586篇
  1篇
中国医学   54篇
肿瘤学   4438篇
  2024年   154篇
  2023年   1297篇
  2022年   658篇
  2021年   1387篇
  2020年   1679篇
  2019年   1205篇
  2018年   2198篇
  2017年   1877篇
  2016年   2109篇
  2015年   2201篇
  2014年   2815篇
  2013年   3557篇
  2012年   2467篇
  2011年   2609篇
  2010年   2296篇
  2009年   2771篇
  2008年   2007篇
  2007年   1862篇
  2006年   1902篇
  2005年   1579篇
  2004年   1340篇
  2003年   1175篇
  2002年   1093篇
  2001年   693篇
  2000年   559篇
  1999年   600篇
  1998年   648篇
  1997年   604篇
  1996年   650篇
  1995年   469篇
  1994年   396篇
  1993年   354篇
  1992年   331篇
  1991年   312篇
  1990年   289篇
  1989年   305篇
  1988年   273篇
  1987年   321篇
  1986年   243篇
  1985年   235篇
  1984年   200篇
  1983年   194篇
  1982年   140篇
  1981年   129篇
  1980年   105篇
  1979年   107篇
  1978年   106篇
  1977年   101篇
  1974年   96篇
  1973年   96篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
The association between asbestos exposure, mainly in occupational settings, and malignant mesothelioma has been well established; this has prompted several countries to establish mesothelioma epidemiologic surveillance programs often at the request of national agencies. This review compares currently existing mesothelioma registries worldwide to develop a concept model for a US real-time case capture mesothelioma registry. Five countries were identified with a mesothelioma specific registry, including Italy, France, UK, Australia, and South Korea. All, except the UK, used interviews to collect exposure data. Linkage with the national death index was available or was in future plans for all registries. The registries have limited information on treatment, quality of life, and other patient-centered outcomes such as symptoms and pain management. To thoroughly collect exposure data, “real-time” enrollment is preferable; to maximize the capture of mesothelioma cases, optimal coverage, and a simplified consent process are needed.  相似文献   
5.
6.
7.
8.
9.
10.

Background

A history of childhood maltreatment and psychopathology are common in adults with obesity.

Objectives

To report childhood maltreatment and to evaluate associations between severity and type of childhood maltreatment and lifetime history of psychopathology among adults with severe obesity awaiting bariatric surgery.

Setting

Four clinical centers of the Longitudinal Assessment of Bariatric Surgery Research Consortium.

Methods

The Childhood Trauma Questionnaire, which assesses presence/severity (i.e., none, mild, moderate, severe) of physical abuse, mental abuse, physical neglect, mental neglect, and sexual abuse, was completed by 302 female and 66 male bariatric surgery patients. Presurgery lifetime history of psychopathology and suicidal ideation/behavior were assessed with the Structured Clinical Interview for DSM-IV and the Suicidal Behavioral Questionnaire-Revised, respectively. Presurgery lifetime history of antidepressant use was self-reported.

Results

Two thirds (66.6%) of females and 47.0% of males reported at least 1 form of childhood trauma; 42.4% and 24.2%, respectively, at greater than or equal to moderate severity. Among women, presence/greater severity of childhood mental or physical abuse or neglect was associated with a higher risk of history of psychopathology (i.e., major depressive disorder, posttraumatic stress disorder, other anxiety disorder, alcohol use disorder, binge eating disorder), suicidal ideation/behavior and antidepressant use (P for all ≤ .02). These associations were independent of age, race, education, body mass index, and childhood sexual abuse. Childhood sexual abuse was independently associated with a history of suicidal ideation/behavior and antidepressant use only (P for both ≤ .05). Statistical power was limited to evaluate these associations among men.

Conclusion

Among women with obesity, presence/severity of childhood trauma was positively associated with relatively common psychiatric disorders.  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