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   1439805篇
  免费   107734篇
  国内免费   2458篇
耳鼻咽喉   20736篇
儿科学   49312篇
妇产科学   39150篇
基础医学   204834篇
口腔科学   39395篇
临床医学   122336篇
内科学   296657篇
皮肤病学   33318篇
神经病学   113983篇
特种医学   54969篇
外国民族医学   687篇
外科学   216405篇
综合类   28007篇
现状与发展   1篇
一般理论   418篇
预防医学   111530篇
眼科学   31223篇
药学   106224篇
  2篇
中国医学   3159篇
肿瘤学   77651篇
  2021年   11933篇
  2019年   12933篇
  2018年   18498篇
  2017年   13304篇
  2016年   14238篇
  2015年   16004篇
  2014年   21989篇
  2013年   33172篇
  2012年   47024篇
  2011年   49524篇
  2010年   28935篇
  2009年   26900篇
  2008年   45969篇
  2007年   49038篇
  2006年   48794篇
  2005年   47674篇
  2004年   45820篇
  2003年   44259篇
  2002年   43133篇
  2001年   68321篇
  2000年   71193篇
  1999年   60209篇
  1998年   16258篇
  1997年   14549篇
  1996年   14927篇
  1995年   14078篇
  1994年   13267篇
  1993年   12271篇
  1992年   46313篇
  1991年   45125篇
  1990年   43672篇
  1989年   41389篇
  1988年   37990篇
  1987年   37329篇
  1986年   34679篇
  1985年   33261篇
  1984年   24860篇
  1983年   20886篇
  1982年   12107篇
  1981年   10996篇
  1979年   21989篇
  1978年   15283篇
  1977年   12920篇
  1976年   12106篇
  1975年   13147篇
  1974年   15259篇
  1973年   14729篇
  1972年   13493篇
  1971年   12290篇
  1970年   11584篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Molnár  B.  Aroca  S.  Dobos  A.  Orbán  K.  Szabó  J.  Windisch  P.  Stähli  A.  Sculean  A. 《Clinical oral investigations》2022,26(12):7135-7142
Clinical Oral Investigations - To evaluate t he long-term outcomes following treatment of RT 1 multiple adjacent gingival recessions (MAGR) using the modified coronally advanced tunnel (MCAT) with...  相似文献   
2.
3.
4.
5.
6.
7.
Inflammatory bowel disease (IBD) is a chronic disease that requires chronic treatment throughout the evolution of the disease, with a complex physiopathology that entails great challenges for the development of new and specific treatments for ulcerative colitis and Crohn´s disease. The anti-tumor necrosis factor alpha therapy has impacted the clinical course of IBD in those patients who do not respond to conventional treatment, so there is a need to develop new therapies and markers of treatment response. Various pathways involved in the development of the disease are known and the new therapies have focused on blocking the inflammatory process at the gastrointestinal level by oral, intravenous, subcutaneous, and topical route. All these new therapies can lead to more personalized treatments with higher success rates and fewer relapses. These treatments have not only focused on clinical remission, but also on achieving macroscopic changes at the endoscopic level and microscopic changes by achieving mucosal healing. These treatments are mainly based on modifying signaling pathways, by blocking receptors or ligands, reducing cell migration and maintaining the integrity of the epithelial barrier. Therefore, this review presents the efficacy and safety of the new treatments that are currently under study and the advances that have been made in this area in recent years.  相似文献   
8.
9.
Journal of Immigrant and Minority Health - COVID-19 has disproportionally affected underrepresented minorities (URM) and low-income immigrants in the United States. The aim of the study is to...  相似文献   
10.
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   
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