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   36210篇
  免费   7131篇
  国内免费   159篇
耳鼻咽喉   756篇
儿科学   1299篇
妇产科学   1204篇
基础医学   2325篇
口腔科学   2863篇
临床医学   5991篇
内科学   7689篇
皮肤病学   711篇
神经病学   3533篇
特种医学   1220篇
外科学   5236篇
综合类   172篇
现状与发展   12篇
一般理论   10篇
预防医学   4884篇
眼科学   521篇
药学   1131篇
  1篇
中国医学   36篇
肿瘤学   3906篇
  2024年   150篇
  2023年   1243篇
  2022年   623篇
  2021年   1263篇
  2020年   1596篇
  2019年   1093篇
  2018年   2043篇
  2017年   1798篇
  2016年   1979篇
  2015年   2077篇
  2014年   2662篇
  2013年   3316篇
  2012年   2131篇
  2011年   2233篇
  2010年   2105篇
  2009年   2588篇
  2008年   1736篇
  2007年   1510篇
  2006年   1549篇
  2005年   1289篇
  2004年   1064篇
  2003年   925篇
  2002年   828篇
  2001年   446篇
  2000年   306篇
  1999年   435篇
  1998年   567篇
  1997年   544篇
  1996年   583篇
  1995年   416篇
  1994年   333篇
  1993年   287篇
  1992年   191篇
  1991年   163篇
  1990年   144篇
  1989年   149篇
  1988年   133篇
  1987年   134篇
  1986年   110篇
  1985年   100篇
  1984年   81篇
  1983年   92篇
  1982年   89篇
  1981年   73篇
  1980年   49篇
  1979年   33篇
  1978年   35篇
  1977年   45篇
  1976年   31篇
  1975年   28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.

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   
10.
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