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   165030篇
  免费   33256篇
  国内免费   2507篇
耳鼻咽喉   5364篇
儿科学   5798篇
妇产科学   2708篇
基础医学   5409篇
口腔科学   1768篇
临床医学   28083篇
内科学   50292篇
皮肤病学   7929篇
神经病学   16678篇
特种医学   7337篇
外科学   42913篇
综合类   367篇
现状与发展   72篇
一般理论   4篇
预防医学   7792篇
眼科学   3603篇
药学   1824篇
中国医学   70篇
肿瘤学   12782篇
  2024年   691篇
  2023年   4902篇
  2022年   1409篇
  2021年   3463篇
  2020年   6269篇
  2019年   2532篇
  2018年   7763篇
  2017年   7660篇
  2016年   8837篇
  2015年   8814篇
  2014年   16070篇
  2013年   16309篇
  2012年   6630篇
  2011年   6713篇
  2010年   11049篇
  2009年   14830篇
  2008年   6819篇
  2007年   5053篇
  2006年   7440篇
  2005年   4718篇
  2004年   3832篇
  2003年   2774篇
  2002年   2775篇
  2001年   3916篇
  2000年   3100篇
  1999年   3361篇
  1998年   3838篇
  1997年   3613篇
  1996年   3499篇
  1995年   3310篇
  1994年   2051篇
  1993年   1630篇
  1992年   1418篇
  1991年   1456篇
  1990年   1088篇
  1989年   1209篇
  1988年   1056篇
  1987年   886篇
  1986年   908篇
  1985年   746篇
  1984年   574篇
  1983年   543篇
  1982年   551篇
  1981年   433篇
  1980年   401篇
  1979年   331篇
  1978年   356篇
  1977年   434篇
  1975年   296篇
  1972年   310篇
排序方式: 共有10000条查询结果,搜索用时 78 毫秒
11.
Klawitter  Felix  Walter  Uwe  Axer  Hubertus  Ehler  Johannes 《Der Anaesthesist》2023,72(8):543-554
Die Anaesthesiologie - Die Intensive Care Unit-Acquired Weakness (ICUAW) stellt eine der häufigsten neuromuskulären Komplikationen in der Intensivmedizin dar. Besonders bei...  相似文献   
12.
13.
14.
Two Janus-associated kinase inhibitors (JAKi) (initially ruxolitinib and, more recently, fedratinib) have been approved as treatment options for patients who have intermediate-risk and high-risk myelofibrosis (MF), with pivotal trials demonstrating improvements in spleen volume, disease symptoms, and quality of life. At the same time, however, clinical trial experiences with JAKi agents in MF have demonstrated a high frequency of discontinuations because of adverse events or progressive disease. In addition, overall survival benefits and clinical and molecular predictors of response have not been established in this population, for which the disease burden is high and treatment options are limited. Consistently poor outcomes have been documented after JAKi discontinuation, with survival durations after ruxolitinib ranging from 11 to 16 months across several studies. To address such a high unmet therapeutic need, various non-JAKi agents are being actively explored (in combination with ruxolitinib in first-line or salvage settings and/or as monotherapy in JAKi-pretreated patients) in phase 3 clinical trials, including pelabresib (a bromodomain and extraterminal domain inhibitor), navitoclax (a B-cell lymphoma 2/B-cell lymphoma 2-xL inhibitor), parsaclisib (a phosphoinositide 3-kinase inhibitor), navtemadlin (formerly KRT-232; a murine double-minute chromosome 2 inhibitor), and imetelstat (a telomerase inhibitor). The breadth of data expected from these trials will provide insight into the ability of non-JAKi treatments to modify the natural history of MF.  相似文献   
15.
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   
16.
17.
18.
19.
20.
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