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   65077篇
  免费   4889篇
  国内免费   591篇
耳鼻咽喉   864篇
儿科学   1456篇
妇产科学   1582篇
基础医学   8902篇
口腔科学   1733篇
临床医学   6295篇
内科学   13060篇
皮肤病学   1528篇
神经病学   4698篇
特种医学   2761篇
外科学   9253篇
综合类   1453篇
一般理论   41篇
预防医学   3438篇
眼科学   2295篇
药学   5309篇
  1篇
中国医学   597篇
肿瘤学   5291篇
  2023年   417篇
  2022年   768篇
  2021年   1862篇
  2020年   1129篇
  2019年   1589篇
  2018年   1910篇
  2017年   1462篇
  2016年   1702篇
  2015年   2195篇
  2014年   2818篇
  2013年   3255篇
  2012年   4768篇
  2011年   4890篇
  2010年   2852篇
  2009年   2543篇
  2008年   3704篇
  2007年   3725篇
  2006年   3564篇
  2005年   3386篇
  2004年   2978篇
  2003年   2669篇
  2002年   2400篇
  2001年   1869篇
  2000年   1791篇
  1999年   1480篇
  1998年   563篇
  1997年   455篇
  1996年   421篇
  1995年   341篇
  1994年   313篇
  1993年   290篇
  1992年   693篇
  1991年   619篇
  1990年   596篇
  1989年   558篇
  1988年   490篇
  1987年   467篇
  1986年   416篇
  1985年   342篇
  1984年   283篇
  1983年   193篇
  1982年   147篇
  1981年   129篇
  1980年   133篇
  1979年   197篇
  1978年   133篇
  1977年   119篇
  1976年   110篇
  1975年   111篇
  1972年   113篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
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   
4.
5.
6.
7.
INTRODUCTIONPsoriasis is a chronic inflammatory condition that affects the skin and joints, and is associated with cardiovascular risk factors, including metabolic syndrome (MetS). We aimed to assess the prevalence of MetS in patients with psoriasis and determine whether there was a correlation between psoriasis severity and MetS in a Singapore population.METHODSThis was a cross-sectional study of patients with psoriasis, aged 18–69 years, who attended a tertiary dermatology referral centre in Singapore from October 2007 to February 2009. Fasting glucose, lipids, blood pressure, Psoriasis Area and Severity Index, and body mass index were measured. MetS was diagnosed in the presence of three or more criteria of the modified National Cholesterol Education Program Adult Treatment Panel III.RESULTSAmong 338 patients with psoriasis, there were 238 (70.4%) men and 100 (29.6%) women, who were Chinese (n = 228; 67.5%), Malay (n = 52; 15.4%) and Indian (n = 58; 17.2%). The prevalence of MetS was 45.1%. MetS was 44% more prevalent in patients older than 50 years (p = 0.02). Malay patients with psoriasis were significantly more likely to have hypertriglyceridaemia, elevated fasting plasma glucose and abdominal obesity. There was no significant correlation between psoriasis severity and risk of MetS.CONCLUSIONThe prevalence of MetS in patients with psoriasis in Singapore was 45.1%, or nearly threefold higher than the Singapore general population. Patients with psoriasis should be screened yearly for MetS and any modifiable cardiovascular risk factors should be actively controlled.  相似文献   
8.
9.
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