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   3289678篇
  免费   281265篇
  国内免费   14105篇
耳鼻咽喉   45358篇
儿科学   105907篇
妇产科学   84273篇
基础医学   528806篇
口腔科学   89028篇
临床医学   295683篇
内科学   578712篇
皮肤病学   90027篇
神经病学   283608篇
特种医学   128631篇
外国民族医学   330篇
外科学   508631篇
综合类   101411篇
现状与发展   23篇
一般理论   2294篇
预防医学   280552篇
眼科学   74857篇
药学   224616篇
  51篇
中国医学   9738篇
肿瘤学   152512篇
  2021年   56866篇
  2020年   35982篇
  2019年   59619篇
  2018年   73143篇
  2017年   55483篇
  2016年   61101篇
  2015年   75139篇
  2014年   109865篇
  2013年   175764篇
  2012年   91406篇
  2011年   91348篇
  2010年   117811篇
  2009年   121839篇
  2008年   76949篇
  2007年   79446篇
  2006年   89930篇
  2005年   85220篇
  2004年   87176篇
  2003年   77953篇
  2002年   67519篇
  2001年   95664篇
  2000年   88353篇
  1999年   89795篇
  1998年   64553篇
  1997年   62546篇
  1996年   60239篇
  1995年   55770篇
  1994年   50042篇
  1993年   46578篇
  1992年   62741篇
  1991年   59777篇
  1990年   56897篇
  1989年   56188篇
  1988年   51837篇
  1987年   51240篇
  1986年   48319篇
  1985年   48822篇
  1984年   45370篇
  1983年   41651篇
  1982年   40714篇
  1981年   38519篇
  1980年   36245篇
  1979年   37143篇
  1978年   33793篇
  1977年   30985篇
  1976年   28506篇
  1975年   26836篇
  1974年   27627篇
  1973年   26577篇
  1972年   24689篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
81.
82.
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   
83.
84.
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   
85.
86.
87.
Breast pseudoaneurysms after a core needle biopsy are a rare complication with a low incidence. However, it is important to be aware of the possibility of complications that require treatment.  相似文献   
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