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   3502774篇
  免费   301725篇
  国内免费   14519篇
耳鼻咽喉   49811篇
儿科学   112442篇
妇产科学   91266篇
基础医学   548198篇
口腔科学   94163篇
临床医学   317558篇
内科学   625686篇
皮肤病学   95311篇
神经病学   298943篇
特种医学   138800篇
外国民族医学   391篇
外科学   555313篇
综合类   102756篇
现状与发展   91篇
一般理论   2206篇
预防医学   290307篇
眼科学   80897篇
药学   239837篇
  23篇
中国医学   9797篇
肿瘤学   165222篇
  2021年   56014篇
  2020年   37413篇
  2019年   58824篇
  2018年   74395篇
  2017年   57360篇
  2016年   63285篇
  2015年   77443篇
  2014年   114383篇
  2013年   179598篇
  2012年   92419篇
  2011年   92619篇
  2010年   120760篇
  2009年   126680篇
  2008年   80752篇
  2007年   83507篇
  2006年   95130篇
  2005年   90175篇
  2004年   91534篇
  2003年   82616篇
  2002年   72988篇
  2001年   105718篇
  2000年   98082篇
  1999年   98415篇
  1998年   66763篇
  1997年   64193篇
  1996年   61828篇
  1995年   57178篇
  1994年   51176篇
  1993年   47507篇
  1992年   69939篇
  1991年   67268篇
  1990年   64547篇
  1989年   63721篇
  1988年   59631篇
  1987年   58046篇
  1986年   55392篇
  1985年   55282篇
  1984年   49810篇
  1983年   45825篇
  1982年   42266篇
  1981年   39717篇
  1980年   37423篇
  1979年   41859篇
  1978年   36506篇
  1977年   33475篇
  1976年   30815篇
  1975年   30057篇
  1974年   31290篇
  1973年   30083篇
  1972年   28370篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
83.
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   
84.
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