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   1412120篇
  免费   113330篇
  国内免费   3333篇
耳鼻咽喉   18387篇
儿科学   46564篇
妇产科学   41119篇
基础医学   200884篇
口腔科学   37722篇
临床医学   126201篇
内科学   284473篇
皮肤病学   33354篇
神经病学   117010篇
特种医学   53879篇
外国民族医学   464篇
外科学   210626篇
综合类   32813篇
现状与发展   3篇
一般理论   494篇
预防医学   110165篇
眼科学   31501篇
药学   98591篇
  1篇
中国医学   3347篇
肿瘤学   81185篇
  2021年   10869篇
  2019年   11693篇
  2018年   16595篇
  2017年   12694篇
  2016年   14279篇
  2015年   16026篇
  2014年   22582篇
  2013年   33452篇
  2012年   45448篇
  2011年   47991篇
  2010年   28212篇
  2009年   27094篇
  2008年   44384篇
  2007年   46876篇
  2006年   47451篇
  2005年   45903篇
  2004年   43814篇
  2003年   41742篇
  2002年   40225篇
  2001年   73028篇
  2000年   74561篇
  1999年   61578篇
  1998年   16996篇
  1997年   15436篇
  1996年   15592篇
  1995年   14790篇
  1994年   13399篇
  1993年   12583篇
  1992年   45856篇
  1991年   43495篇
  1990年   41506篇
  1989年   39570篇
  1988年   36194篇
  1987年   35362篇
  1986年   32870篇
  1985年   31299篇
  1984年   23836篇
  1983年   20031篇
  1982年   12216篇
  1981年   10789篇
  1979年   20714篇
  1978年   14592篇
  1977年   12093篇
  1976年   11371篇
  1975年   11632篇
  1974年   13999篇
  1973年   13539篇
  1972年   12639篇
  1971年   11476篇
  1970年   10914篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
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   
2.
3.
4.
5.
6.
7.
8.
Metabolism describes the series of chemical reactions that are concerned with the provision of energy to biological systems. They may be divided into reactions involved in energy yield (catabolism: demand exceeds supply), and energy storage (anabolism: supply exceeds demand). Regulation of these pathways is critical for homeostasis, and derangements in metabolism are seen in a wide variety of pathological processes. Understanding metabolism is key to the treatment of many diseases, notably diabetes, as well as underpinning clinical nutritional support.  相似文献   
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