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   2585967篇
  免费   187900篇
  国内免费   7563篇
耳鼻咽喉   34313篇
儿科学   85286篇
妇产科学   71629篇
基础医学   363787篇
口腔科学   69662篇
临床医学   234667篇
内科学   515777篇
皮肤病学   62503篇
神经病学   213562篇
特种医学   99912篇
外国民族医学   742篇
外科学   386561篇
综合类   50400篇
现状与发展   5篇
一般理论   968篇
预防医学   196285篇
眼科学   56673篇
药学   188075篇
  8篇
中国医学   5331篇
肿瘤学   145284篇
  2021年   19996篇
  2019年   20636篇
  2018年   29308篇
  2017年   22614篇
  2016年   26241篇
  2015年   29519篇
  2014年   40462篇
  2013年   60471篇
  2012年   80294篇
  2011年   84548篇
  2010年   51034篇
  2009年   49185篇
  2008年   79085篇
  2007年   83921篇
  2006年   85623篇
  2005年   81798篇
  2004年   78806篇
  2003年   76103篇
  2002年   73400篇
  2001年   128434篇
  2000年   131369篇
  1999年   110543篇
  1998年   31270篇
  1997年   27932篇
  1996年   28232篇
  1995年   27390篇
  1994年   25077篇
  1993年   23430篇
  1992年   85193篇
  1991年   81587篇
  1990年   78808篇
  1989年   76091篇
  1988年   69482篇
  1987年   68020篇
  1986年   63558篇
  1985年   60528篇
  1984年   44954篇
  1983年   37965篇
  1982年   22468篇
  1981年   19993篇
  1979年   38969篇
  1978年   27449篇
  1977年   23266篇
  1976年   21507篇
  1975年   22822篇
  1974年   26797篇
  1973年   25383篇
  1972年   23758篇
  1971年   21961篇
  1970年   20192篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
31.
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   
32.
33.
34.
We review the spectrum of cutaneous disorders associated with inflammatory and neoplastic plasmacytic pathology. Because plasma cells are derived from B‐lymphocytes our overview includes discussion of certain lymphoplasmacytic proliferations. It is structured along histopathological lines, addressing conditions characterized by (a) cutaneous plasma cell infiltrates, (b) deposits of plasma cell products or their derivatives in the skin and (c) miscellaneous, poorly understood cutaneous complications of plasmacytic disorders. Lesions arising primarily in the skin and those due to cutaneous involvement by multisystem disorders are addressed. The range includes a spectrum of tumefactive and circulatory manifestations. We highlight key clinical and pathological features of the different conditions and outline recent advances in our understanding of these entities. By emphasizing the dermatopathological characteristics of this spectrum of disorders we hope to hone the diagnostic accuracy of practitioners in the field.  相似文献   
35.
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   
36.
37.
38.
39.
40.
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