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   4086065篇
  免费   308707篇
  国内免费   10220篇
耳鼻咽喉   57686篇
儿科学   130940篇
妇产科学   111583篇
基础医学   570872篇
口腔科学   117454篇
临床医学   377713篇
内科学   792738篇
皮肤病学   91495篇
神经病学   340047篇
特种医学   159383篇
外国民族医学   1440篇
外科学   612489篇
综合类   91518篇
现状与发展   6篇
一般理论   1750篇
预防医学   327500篇
眼科学   95218篇
药学   302421篇
  13篇
中国医学   8004篇
肿瘤学   214722篇
  2018年   43972篇
  2017年   33842篇
  2016年   38409篇
  2015年   43331篇
  2014年   61051篇
  2013年   92717篇
  2012年   123281篇
  2011年   130840篇
  2010年   78398篇
  2009年   74931篇
  2008年   122748篇
  2007年   130498篇
  2006年   132164篇
  2005年   127712篇
  2004年   123124篇
  2003年   118631篇
  2002年   115518篇
  2001年   187404篇
  2000年   192927篇
  1999年   163651篇
  1998年   48700篇
  1997年   43465篇
  1996年   43100篇
  1995年   41804篇
  1994年   38795篇
  1993年   36289篇
  1992年   130076篇
  1991年   125861篇
  1990年   121627篇
  1989年   117598篇
  1988年   108611篇
  1987年   107060篇
  1986年   101103篇
  1985年   96903篇
  1984年   72876篇
  1983年   62257篇
  1982年   37532篇
  1981年   33778篇
  1979年   67002篇
  1978年   47428篇
  1977年   40208篇
  1976年   37683篇
  1975年   39747篇
  1974年   48191篇
  1973年   46012篇
  1972年   43275篇
  1971年   40068篇
  1970年   37422篇
  1969年   35393篇
  1968年   32582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.
45.
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   
46.
47.
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   
48.
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