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   384135篇
  免费   51942篇
  国内免费   16589篇
耳鼻咽喉   7157篇
儿科学   8308篇
妇产科学   7224篇
基础医学   31039篇
口腔科学   5641篇
临床医学   56539篇
内科学   84991篇
皮肤病学   10054篇
神经病学   27711篇
特种医学   14661篇
外国民族医学   96篇
外科学   66077篇
综合类   34162篇
现状与发展   117篇
一般理论   45篇
预防医学   21518篇
眼科学   9904篇
药学   24903篇
  164篇
中国医学   10880篇
肿瘤学   31475篇
  2024年   1053篇
  2023年   7571篇
  2022年   8470篇
  2021年   14221篇
  2020年   14028篇
  2019年   9548篇
  2018年   15010篇
  2017年   14007篇
  2016年   14717篇
  2015年   18141篇
  2014年   27712篇
  2013年   27013篇
  2012年   22709篇
  2011年   24407篇
  2010年   21718篇
  2009年   23224篇
  2008年   18309篇
  2007年   16623篇
  2006年   18624篇
  2005年   16013篇
  2004年   11477篇
  2003年   9517篇
  2002年   8569篇
  2001年   9724篇
  2000年   9069篇
  1999年   9563篇
  1998年   7237篇
  1997年   7069篇
  1996年   6119篇
  1995年   5764篇
  1994年   4153篇
  1993年   3045篇
  1992年   3652篇
  1991年   3391篇
  1990年   2711篇
  1989年   2616篇
  1988年   2271篇
  1987年   1995篇
  1986年   1813篇
  1985年   1457篇
  1984年   1034篇
  1983年   897篇
  1982年   736篇
  1981年   598篇
  1980年   547篇
  1979年   548篇
  1978年   469篇
  1977年   508篇
  1975年   362篇
  1972年   375篇
排序方式: 共有10000条查询结果,搜索用时 859 毫秒
21.
22.
23.
24.
25.
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   
26.

Female Genital mutilation/cutting (FGM/C) is associated with enduring psychiatric complications. In this study, we investigate the rates of co-morbid abuses and polyvictimization experienced by survivors of FGM/C. This is a sub-analysis of a cohort study examining the patient population at the EMPOWER Center for Survivors of Sex Trafficking and Sexual Violence in New York City. A retrospective chart-review of electronic medical records was conducted for all consenting adult patients who had FGM/C and had an intake visit between January 16, 2014 and March 6, 2020. Of the 80 participants, ages ranged from 20 to 62 years with a mean of 37.4 (SD?=?9.1) years. In addition to FGM/C, participants were victims of physical abuse (43; 53.8%), emotional abuse (35; 43.8%), sexual abuse (35; 43.8%), forced marriage (20; 25%), child marriage (13; 16.3%), and sex trafficking (1; 1.4%). There was a high degree of polyvictimization, with 41 (51.2%) experiencing 3 or more of the aforementioned abuses. Having FGM/C on or after age 13 or having a higher total abuse score was also found to be strong predictors of depression and PTSD. The high rates of polyvictimization among survivors of FGM/C are associated with development of depression and PTSD. Despite co-morbid abuses, patients still attribute substantial psychiatric symptoms to their FGM/C. Health care providers should understand the high risk of polyvictimization when caring for this patient population.

  相似文献   
27.
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   
28.
29.
目的:通过调研江苏省公立医院编内及非在编人员参加养老保险的现状,分析其存在的困境,提出相应的对策建议。方法:对江苏省内公立医院发放调研问卷,收集数据整理后运用统计分析和比较分析法描述其运营概况、编内及非在编人员参加养老保险的情况,运用公平理论分析公立医院养老保险存在的问题。结果:江苏省公立医院编内人员参加机关事业单位养老保险,非在编人员参加城镇职工养老保险;省属公立医院非在编人员占比最高;编内人员缴费基数及养老待遇均显著高于非在编人员;编内人员参加职业年金,非在编人员尚未建立年金计划。结论:树立底线公平理念,完善养老保险制度体系;改革完善非在编人员年金计划政策;建立健全参保成本财政分担机制。  相似文献   
30.
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