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   25318篇
  免费   6314篇
  国内免费   66篇
耳鼻咽喉   575篇
儿科学   819篇
妇产科学   893篇
基础医学   1517篇
口腔科学   1182篇
临床医学   4748篇
内科学   7741篇
皮肤病学   469篇
神经病学   1741篇
特种医学   394篇
外科学   2725篇
综合类   84篇
现状与发展   2篇
一般理论   14篇
预防医学   4492篇
眼科学   369篇
药学   800篇
中国医学   16篇
肿瘤学   3117篇
  2024年   49篇
  2023年   1221篇
  2022年   496篇
  2021年   1130篇
  2020年   1559篇
  2019年   830篇
  2018年   1509篇
  2017年   1505篇
  2016年   1759篇
  2015年   1709篇
  2014年   2356篇
  2013年   2647篇
  2012年   1440篇
  2011年   1339篇
  2010年   1481篇
  2009年   1860篇
  2008年   1096篇
  2007年   957篇
  2006年   1171篇
  2005年   727篇
  2004年   618篇
  2003年   488篇
  2002年   418篇
  2001年   313篇
  2000年   254篇
  1999年   278篇
  1998年   381篇
  1997年   275篇
  1996年   264篇
  1995年   213篇
  1994年   173篇
  1993年   121篇
  1992年   129篇
  1991年   114篇
  1990年   114篇
  1989年   88篇
  1988年   72篇
  1987年   60篇
  1986年   69篇
  1985年   58篇
  1984年   47篇
  1983年   50篇
  1982年   22篇
  1980年   22篇
  1979年   26篇
  1978年   19篇
  1977年   26篇
  1976年   16篇
  1975年   23篇
  1972年   18篇
排序方式: 共有10000条查询结果,搜索用时 484 毫秒
1.
2.
3.
4.
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.
Journal of Neuro-Oncology - Adjuvant radiation is often used in patients with low grade gliomas with high-risk characteristics with a recommended dose of 45–54 Gy. We used the...  相似文献   
8.
Despite orientation and mobility (O&M) being a significant factor determining quality of life of people with low vision or blindness, there are no gold standard measures or agreement on how to measure O&M performance. In the first part of this systematic review, an inventory of O&M outcome measures used by recent studies to assess the performance of orientation and/or mobility of adults with vision impairment (low vision and blindness) is presented. A wide variety of O&M outcome measures have been implemented in different fields of study, such as epidemiologic research and interventional studies evaluating training, assistive technology, vision rehabilitation and vision restoration. The most frequent aspect of outcome measures is efficiency such as time, distance, speed and percentage of preferred walking speed, followed by obstacle contacts and avoidance, and dis/orientation and veering. Other less commonly used aspects are target identification, safety and social interaction and self-reported outcome measures. Some studies employ sophisticated equipment to capture and analyse O&M performance in a laboratory setting, while others carry out their assessment in real-world indoor or outdoor environments. In the second part of this review, the appropriateness of implementing the identified outcome measures to assess O&M performance in clinical and functional O&M practice is evaluated. Nearly a half of these outcome measures meet all four criteria of face validity (either clinical or functional), responsiveness, reliability and feasibility and have the potential to be implemented in clinical or functional O&M practice. The findings of this review confirm the complicated and dynamic nature of O&M. Multiple measures are required in any evaluation of O&M performance to facilitate holistic assessment of O&M abilities and limitations of each individual.  相似文献   
9.
10.
Emergency Medicine staff in Australia and New Zealand are at the forefront of the healthcare response to COVID‐19. This article describes a well‐being plan for ED staff that has been devised to mitigate against the negative psychological impact of the COVID‐19 pandemic.  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