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   175044篇
  免费   16355篇
  国内免费   576篇
耳鼻咽喉   1825篇
儿科学   4674篇
妇产科学   4849篇
基础医学   21174篇
口腔科学   3324篇
临床医学   33895篇
内科学   32817篇
皮肤病学   2368篇
神经病学   16226篇
特种医学   5808篇
外国民族医学   7篇
外科学   22100篇
综合类   2113篇
现状与发展   1篇
一般理论   136篇
预防医学   16630篇
眼科学   2596篇
药学   10450篇
中国医学   189篇
肿瘤学   10793篇
  2023年   1532篇
  2022年   1408篇
  2021年   3250篇
  2020年   2516篇
  2019年   3108篇
  2018年   4631篇
  2017年   3909篇
  2016年   4379篇
  2015年   4874篇
  2014年   6145篇
  2013年   8242篇
  2012年   10323篇
  2011年   10764篇
  2010年   6792篇
  2009年   6506篇
  2008年   9636篇
  2007年   10327篇
  2006年   9642篇
  2005年   9378篇
  2004年   8832篇
  2003年   8043篇
  2002年   7816篇
  2001年   3388篇
  2000年   3080篇
  1999年   3038篇
  1998年   2492篇
  1997年   2287篇
  1996年   1983篇
  1995年   1940篇
  1994年   1519篇
  1993年   1346篇
  1992年   2124篇
  1991年   1947篇
  1990年   1880篇
  1989年   1752篇
  1988年   1581篇
  1987年   1460篇
  1986年   1511篇
  1985年   1524篇
  1984年   1255篇
  1983年   1094篇
  1982年   981篇
  1981年   872篇
  1980年   771篇
  1979年   989篇
  1978年   769篇
  1977年   710篇
  1974年   650篇
  1973年   595篇
  1972年   602篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
Journal of Behavioral Medicine - Evidence supports the use of graphic warnings to educate the public about the health harms of smoking and suggests warnings eliciting negative emotional responses...  相似文献   
4.
International Journal of Clinical Oncology - Immune-checkpoint inhibitors (ICIs) are standard treatments for metastatic non-small cell lung cancer (NSCLC). Patients with poor performance status...  相似文献   
5.
Patient navigation is a strategy for overcoming barriers to reduce disparities and to improve access and outcomes. The aim of this umbrella review was to identify, critically appraise, synthesize, and present the best available evidence to inform policy and planning regarding patient navigation across the cancer continuum. Systematic reviews examining navigation in cancer care were identified in the Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, Embase, Cumulative Index of Nursing and Allied Health (CINAHL), Epistemonikos, and Prospective Register of Systematic Reviews (PROSPERO) databases and in the gray literature from January 1, 2012, to April 19, 2022. Data were screened, extracted, and appraised independently by two authors. The JBI Critical Appraisal Checklist for Systematic Review and Research Syntheses was used for quality appraisal. Emerging literature up to May 25, 2022, was also explored to capture primary research published beyond the coverage of included systematic reviews. Of the 2062 unique records identified, 61 systematic reviews were included. Fifty-four reviews were quantitative or mixed-methods reviews, reporting on the effectiveness of cancer patient navigation, including 12 reviews reporting costs or cost-effectiveness outcomes. Seven qualitative reviews explored navigation needs, barriers, and experiences. In addition, 53 primary studies published since 2021 were included. Patient navigation is effective in improving participation in cancer screening and reducing the time from screening to diagnosis and from diagnosis to treatment initiation. Emerging evidence suggests that patient navigation improves quality of life and patient satisfaction with care in the survivorship phase and reduces hospital readmission in the active treatment and survivorship care phases. Palliative care data were extremely limited. Economic evaluations from the United States suggest the potential cost-effectiveness of navigation in screening programs.  相似文献   
6.
7.
The current study explored the influence of three methods of parental emotion discourse (structured story-telling, reminiscing, and picture book) and their relation to preschoolers’ emotion understanding. Thirty-seven families participated in the study. Analyses showed that the structured story-telling method produced more emotion words, was high in unique emotion words, and was high for both emotion labelling and explanations. All three methods showed some potential to predict preschooler’s emotion understanding. Structured story-telling was best at predicting role-taking, while reminiscing and the picture book both were better at predicting situation knowledge. Additional studies are needed to further explore the influence of different methods of assessing emotion discourse to enhance validity and reliability of research in this field.  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