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   14628篇
  免费   2913篇
  国内免费   54篇
耳鼻咽喉   292篇
儿科学   935篇
妇产科学   561篇
基础医学   973篇
口腔科学   176篇
临床医学   1498篇
内科学   3400篇
皮肤病学   566篇
神经病学   897篇
特种医学   386篇
外科学   3834篇
综合类   267篇
一般理论   2篇
预防医学   860篇
眼科学   1095篇
药学   489篇
中国医学   21篇
肿瘤学   1343篇
  2024年   95篇
  2023年   735篇
  2022年   220篇
  2021年   525篇
  2020年   510篇
  2019年   329篇
  2018年   904篇
  2017年   891篇
  2016年   849篇
  2015年   762篇
  2014年   1056篇
  2013年   1020篇
  2012年   803篇
  2011年   785篇
  2010年   803篇
  2009年   878篇
  2008年   672篇
  2007年   585篇
  2006年   595篇
  2005年   439篇
  2004年   348篇
  2003年   327篇
  2002年   291篇
  2001年   317篇
  2000年   259篇
  1999年   260篇
  1998年   172篇
  1997年   146篇
  1996年   105篇
  1995年   101篇
  1994年   71篇
  1993年   66篇
  1992年   131篇
  1991年   127篇
  1990年   90篇
  1989年   86篇
  1988年   92篇
  1987年   84篇
  1986年   88篇
  1985年   108篇
  1984年   59篇
  1983年   63篇
  1982年   51篇
  1981年   44篇
  1979年   83篇
  1978年   48篇
  1977年   50篇
  1974年   43篇
  1973年   50篇
  1972年   48篇
排序方式: 共有10000条查询结果,搜索用时 109 毫秒
1.
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   
2.
Haemophilia is a common cause of genetically inherited bleeding disorders. Pseudotumours occur in 1–2 % of persons with severe forms of haemophilia. These are a result of repeated haemorrhage into soft tissues, subperiosteum or a site of bone fracture with inadequate resorption of the extravasated blood. There are a number of therapeutic alternatives for this dangerous condition: surgical removal, percutaneous management, irradiation, embolization etc. In this case report, we describe the natural history, clinical course and successful surgical management of a patient with haemophilia who presented with a massive pseudotumour. We also briefly review the relevant literature on the various therapeutic modalities that have been implemented in the management of this rare complication. Though surgeons may be averse to operate on haemophiliacs, primary surgical management as done in our case may prove to be the definitive treatment option for such patients.  相似文献   
3.
4.
5.
6.
7.
8.
9.
Digestive Diseases and Sciences - To determine whether the presence of portal vein thrombosis (PVT) where venous flow within the liver may be altered may delay the diagnosis of HCC and be...  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