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   4149546篇
  免费   310159篇
  国内免费   10434篇
耳鼻咽喉   59072篇
儿科学   133922篇
妇产科学   113572篇
基础医学   580567篇
口腔科学   119935篇
临床医学   381431篇
内科学   803048篇
皮肤病学   93695篇
神经病学   345333篇
特种医学   162486篇
外国民族医学   1447篇
外科学   623182篇
综合类   91898篇
现状与发展   6篇
一般理论   1734篇
预防医学   329437篇
眼科学   97356篇
药学   306997篇
  11篇
中国医学   8205篇
肿瘤学   216805篇
  2018年   45236篇
  2017年   34816篇
  2016年   39819篇
  2015年   44914篇
  2014年   62629篇
  2013年   94845篇
  2012年   126458篇
  2011年   133852篇
  2010年   80242篇
  2009年   76393篇
  2008年   125627篇
  2007年   133688篇
  2006年   135406篇
  2005年   131443篇
  2004年   126505篇
  2003年   122055篇
  2002年   118724篇
  2001年   188994篇
  2000年   194438篇
  1999年   165082篇
  1998年   49204篇
  1997年   43839篇
  1996年   43373篇
  1995年   42012篇
  1994年   38987篇
  1993年   36463篇
  1992年   130548篇
  1991年   126310篇
  1990年   122150篇
  1989年   118041篇
  1988年   109076篇
  1987年   107383篇
  1986年   101500篇
  1985年   97218篇
  1984年   73129篇
  1983年   62467篇
  1982年   37647篇
  1981年   33900篇
  1979年   67364篇
  1978年   47706篇
  1977年   40398篇
  1976年   37858篇
  1975年   40107篇
  1974年   48524篇
  1973年   46300篇
  1972年   43610篇
  1971年   40410篇
  1970年   37751篇
  1969年   35693篇
  1968年   32908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.
48.
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   
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