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   3388030篇
  免费   251882篇
  国内免费   5028篇
耳鼻咽喉   47196篇
儿科学   111165篇
妇产科学   93910篇
基础医学   492084篇
口腔科学   96953篇
临床医学   306176篇
内科学   649699篇
皮肤病学   74175篇
神经病学   270368篇
特种医学   129251篇
外国民族医学   902篇
外科学   509297篇
综合类   76507篇
现状与发展   13篇
一般理论   1299篇
预防医学   267452篇
眼科学   79334篇
药学   253753篇
  13篇
中国医学   6362篇
肿瘤学   179031篇
  2018年   35879篇
  2017年   27313篇
  2016年   30611篇
  2015年   34819篇
  2014年   48891篇
  2013年   74041篇
  2012年   101252篇
  2011年   107519篇
  2010年   63869篇
  2009年   60568篇
  2008年   101451篇
  2007年   107867篇
  2006年   109058篇
  2005年   106126篇
  2004年   102633篇
  2003年   98296篇
  2002年   95951篇
  2001年   151239篇
  2000年   155985篇
  1999年   131925篇
  1998年   38378篇
  1997年   34000篇
  1996年   33982篇
  1995年   32510篇
  1994年   30219篇
  1993年   28525篇
  1992年   105545篇
  1991年   103198篇
  1990年   100802篇
  1989年   97413篇
  1988年   90181篇
  1987年   88541篇
  1986年   83719篇
  1985年   80642篇
  1984年   60459篇
  1983年   51860篇
  1982年   30779篇
  1981年   27754篇
  1979年   56819篇
  1978年   40227篇
  1977年   33750篇
  1976年   32151篇
  1975年   34386篇
  1974年   41605篇
  1973年   39792篇
  1972年   37144篇
  1971年   35075篇
  1970年   32350篇
  1969年   30736篇
  1968年   28101篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
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   
3.
4.
5.
6.
7.
Graefe's Archive for Clinical and Experimental Ophthalmology - The published online version contains mistake as the author's first name and last name have been interchanged as "Hild...  相似文献   
8.
9.
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   
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