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   3840624篇
  免费   321505篇
  国内免费   15302篇
耳鼻咽喉   52418篇
儿科学   121413篇
妇产科学   98574篇
基础医学   594068篇
口腔科学   103121篇
临床医学   353037篇
内科学   689948篇
皮肤病学   102602篇
神经病学   324634篇
特种医学   149598篇
外国民族医学   262篇
外科学   599588篇
综合类   114189篇
现状与发展   91篇
一般理论   2398篇
预防医学   314615篇
眼科学   91023篇
药学   262490篇
  26篇
中国医学   11434篇
肿瘤学   191902篇
  2021年   56848篇
  2020年   37883篇
  2019年   59381篇
  2018年   76203篇
  2017年   58882篇
  2016年   65068篇
  2015年   78606篇
  2014年   115502篇
  2013年   180863篇
  2012年   109085篇
  2011年   111114篇
  2010年   125590篇
  2009年   129635篇
  2008年   96892篇
  2007年   100920篇
  2006年   110848篇
  2005年   104497篇
  2004年   105613篇
  2003年   95107篇
  2002年   84307篇
  2001年   137305篇
  2000年   130484篇
  1999年   122943篇
  1998年   70020篇
  1997年   66427篇
  1996年   63830篇
  1995年   59306篇
  1994年   53000篇
  1993年   49215篇
  1992年   85318篇
  1991年   81343篇
  1990年   76952篇
  1989年   75418篇
  1988年   69272篇
  1987年   67431篇
  1986年   63775篇
  1985年   62924篇
  1984年   54963篇
  1983年   49653篇
  1982年   43696篇
  1981年   41038篇
  1980年   38500篇
  1979年   44872篇
  1978年   38265篇
  1977年   34952篇
  1976年   31988篇
  1975年   30800篇
  1974年   32504篇
  1973年   31199篇
  1972年   29059篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
84.
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   
85.
86.
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   
87.
88.
89.
90.
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