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   4074468篇
  免费   301032篇
  国内免费   10201篇
耳鼻咽喉   57480篇
儿科学   130379篇
妇产科学   111157篇
基础医学   568654篇
口腔科学   117009篇
临床医学   375435篇
内科学   789476篇
皮肤病学   91252篇
神经病学   338111篇
特种医学   158610篇
外国民族医学   1438篇
外科学   610193篇
综合类   91221篇
现状与发展   6篇
一般理论   1721篇
预防医学   325692篇
眼科学   94769篇
药学   301377篇
  11篇
中国医学   7983篇
肿瘤学   213727篇
  2018年   43689篇
  2017年   33608篇
  2016年   38178篇
  2015年   43099篇
  2014年   60665篇
  2013年   92135篇
  2012年   122446篇
  2011年   129947篇
  2010年   77894篇
  2009年   74482篇
  2008年   121940篇
  2007年   129533篇
  2006年   131294篇
  2005年   126957篇
  2004年   122366篇
  2003年   117943篇
  2002年   114778篇
  2001年   187060篇
  2000年   192545篇
  1999年   163306篇
  1998年   48505篇
  1997年   43274篇
  1996年   42917篇
  1995年   41624篇
  1994年   38649篇
  1993年   36163篇
  1992年   129766篇
  1991年   125528篇
  1990年   121341篇
  1989年   117251篇
  1988年   108369篇
  1987年   106758篇
  1986年   100826篇
  1985年   96588篇
  1984年   72654篇
  1983年   62046篇
  1982年   37362篇
  1981年   33623篇
  1979年   66762篇
  1978年   47242篇
  1977年   40030篇
  1976年   37502篇
  1975年   39602篇
  1974年   48000篇
  1973年   45816篇
  1972年   43115篇
  1971年   39930篇
  1970年   37314篇
  1969年   35285篇
  1968年   32461篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
41.
Troppmair  Teresa  Egger  J.  Krösbacher  A.  Zanvettor  A.  Schinnerl  A.  Neumayr  A.  Baubin  M. 《Der Anaesthesist》2022,71(4):272-280
Die Anaesthesiologie - Die Qualität eines Rettungssystems zeichnet sich auch durch den effizienten Einsatz seiner personellen und Fahrzeugressourcen aus. So können im berechtigten Fall...  相似文献   
42.
43.
44.
BackgroundThe aim of this study was to estimate the prevalence of dental prosthetic treatment and to investigate the demographic, social, economic and medical factors associated with the use of fixed and removable dentures in a representative sample of adults living in France.MethodsThe data were obtained from the 2002–2003 Decennial Health Survey, a cross-sectional study of a representative sample of the population living in France, which included 29,679 adults. Information was collected by interview. The variables collected were fixed denture, removable denture, age, gender, number of children, area of residence, nationality, educational attainment, family social status, employment status, annual household income per capita, supplementary insurance, chronic disease, eyesight problems/glasses, hearing problems/hearing aids. Multinomial logistic regression models were used to study the relationship between prosthetic treatment and demographic, socioeconomic and medical characteristics unadjusted, adjusted for age and adjusted for all the characteristics.ResultsThe prevalence of prosthetic treatment was 34.6% (95% confidence interval (CI): [34.1; 35.2]) for fixed prosthetic dentures and 13.8% (95% CI: [13.4; 14.2]) for removable prosthetic dentures. We showed a gradient between educational attainment and removable dentures; the odds ratio adjusted for all the variables (aOR) associated with no or primary education compared to post-secondary education was 2.56; 95% CI: [2.09; 3.13]. When annual household income per capita was low, subjects were less likely to report fixed dentures (aOR = 0.68; 95% CI: [0.62; 0.75]) than those with high annual household income per capita. Individuals without insurance less often reported fixed dentures than those with private insurance. Those reporting chronic disease were less likely to report fixed dentures (aOR = 0.87; 95% CI: [0.79; 0.95]) but more likely to report removable dentures (aOR = 1.29; 95% CI: [1.17; 1.43]) than those without chronic disease.ConclusionThis study reveals social, economic and medical inequalities in fixed and removable prosthetic treatment among adults in France.  相似文献   
45.
46.
47.
48.
Academic output is just one aspect of a successful career as a plastic surgeon. However, for those with a strong interest in academia, the academic output of a department will likely be a key factor when deciding how to rank jobs. The aim of this study was to quantify and rank the academic output of plastic surgery units across the UK and Ireland. The Institute for Scientific Information (ISI) Web of Science Bibliometric analysis tool was used to collate cumulative (1950–2016), 10 year (2006–2016) and 3 years (2013–2015) research output data for plastic surgery units in the UK and Ireland. Sixty-six plastic surgery units were identified. Departments were ranked for each time period according to the number of papers produced, number of citations (Nc) and h-index (a measure of the impact of scientific output). The top 3 departments for number of papers in the last 10 years were The Royal Free Hospital, London (226) Broomfield Hospital, Chelmsford (218), and Morriston Hospital and Swansea (188). The top 3 for h-number were The Royal Free Hospital (21) Wythenshawe Hospital, Manchester (18) and Morriston Hospital (17). Academic output varies across plastic surgery units in the UK and Ireland. A number of departments have consistently maintained high academic outputs across the years and will be of interest to surgeons hoping to pursue a career in academia.  相似文献   
49.
50.
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