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   50663篇
  免费   4772篇
  国内免费   166篇
耳鼻咽喉   425篇
儿科学   1934篇
妇产科学   1474篇
基础医学   6652篇
口腔科学   800篇
临床医学   8394篇
内科学   9724篇
皮肤病学   961篇
神经病学   5032篇
特种医学   1086篇
外国民族医学   4篇
外科学   4537篇
综合类   580篇
一般理论   69篇
预防医学   6108篇
眼科学   643篇
药学   3121篇
中国医学   46篇
肿瘤学   4011篇
  2023年   378篇
  2022年   245篇
  2021年   1115篇
  2020年   1005篇
  2019年   1602篇
  2018年   1718篇
  2017年   1319篇
  2016年   1475篇
  2015年   1596篇
  2014年   1956篇
  2013年   2857篇
  2012年   3767篇
  2011年   3708篇
  2010年   2209篇
  2009年   1982篇
  2008年   3332篇
  2007年   3470篇
  2006年   3322篇
  2005年   3147篇
  2004年   2966篇
  2003年   2759篇
  2002年   2593篇
  2001年   450篇
  2000年   391篇
  1999年   408篇
  1998年   544篇
  1997年   365篇
  1996年   333篇
  1995年   391篇
  1994年   346篇
  1993年   310篇
  1992年   232篇
  1991年   208篇
  1990年   202篇
  1989年   197篇
  1988年   174篇
  1987年   148篇
  1986年   163篇
  1985年   186篇
  1984年   164篇
  1983年   172篇
  1982年   202篇
  1981年   202篇
  1980年   176篇
  1979年   82篇
  1978年   94篇
  1977年   95篇
  1976年   111篇
  1975年   87篇
  1974年   84篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.

Objective

To examine the experience of interracial anxiety among health professionals and how it may affect the quality of their interactions with patients from racially marginalized populations. We explored the influence of prior interracial exposure—specifically through childhood neighborhoods, college student bodies, and friend groups—on interracial anxiety among medical students and residents. We also examined whether levels of interracial anxiety change from medical school through residency.

Data Source

Web-based longitudinal survey data from the Medical Student Cognitive Habits and Growth Evaluation Study.

Study Design

We used a retrospective longitudinal design with four observations for each trainee. The study population consisted of non-Black US medical trainees surveyed in their 1st and 4th years of medical school and 2nd and 3rd years of residency. Mixed effects longitudinal models were used to assess predictors of interracial anxiety and assess changes in interracial anxiety scores over time.

Principal Findings

In total, 3155 non-Black medical trainees were followed for 7 years. Seventy-eight percent grew up in predominantly White neighborhoods. Living in predominantly White neighborhoods and having less racially diverse friends were associated with higher levels of interracial anxiety among medical trainees. Trainees' interracial anxiety scores did not substantially change over time; interracial anxiety was highest in the 1st year of medical school, lowest in the 4th year, and increased slightly during residency.

Conclusions

Neighborhood and friend group composition had independent effects on interracial anxiety, indicating that premedical racial socialization may affect medical trainees' preparedness to interact effectively with diverse patient populations. Additionally, the lack of substantial change in interracial anxiety throughout medical training suggests the importance of providing curricular tools and structure (e.g., instituting interracial cooperative learning activities) to foster the development of healthy interracial relationships.  相似文献   
5.
Drug Safety - Analgesics are among the most widely used drugs worldwide. This study describes the population treated with narcotic analgesics, their therapeutic indications and how the data have...  相似文献   
6.
7.
Magnetic resonance elastography aims to non-invasively and remotely characterize the mechanical properties of living tissues. To quantitatively and regionally map the shear viscoelastic moduli in vivo, the technique must achieve proper mechanical excitation throughout the targeted tissues. Although it is straightforward, ante manibus, in close organs such as the liver or the breast, which practitioners clinically palpate already, it is somewhat fortunately highly challenging to trick the natural protective barriers of remote organs such as the brain. So far, mechanical waves have been induced in the latter by shaking the surrounding cranial bones. Here, the skull was circumvented by guiding pressure waves inside the subject's buccal cavity so mechanical waves could propagate from within through the brainstem up to the brain. Repeatable, reproducible and robust displacement fields were recorded in phantoms and in vivo by magnetic resonance elastography with guided pressure waves such that quantitative mechanical outcomes were extracted in the human brain.  相似文献   
8.
9.
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