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   30694篇
  免费   544篇
  国内免费   386篇
耳鼻咽喉   303篇
儿科学   730篇
妇产科学   1289篇
基础医学   4266篇
口腔科学   408篇
临床医学   2255篇
内科学   5055篇
皮肤病学   581篇
神经病学   2334篇
特种医学   1076篇
外科学   4935篇
综合类   2006篇
一般理论   32篇
预防医学   1998篇
眼科学   362篇
药学   2216篇
  28篇
中国医学   127篇
肿瘤学   1623篇
  2023年   121篇
  2022年   344篇
  2021年   874篇
  2020年   544篇
  2019年   829篇
  2018年   1450篇
  2017年   932篇
  2016年   1347篇
  2015年   1491篇
  2014年   1616篇
  2013年   2188篇
  2012年   1683篇
  2011年   1065篇
  2010年   1540篇
  2009年   1191篇
  2008年   965篇
  2007年   1005篇
  2006年   967篇
  2005年   942篇
  2004年   806篇
  2003年   562篇
  2002年   527篇
  2001年   394篇
  2000年   429篇
  1999年   371篇
  1998年   297篇
  1997年   255篇
  1996年   237篇
  1995年   228篇
  1994年   202篇
  1993年   210篇
  1992年   236篇
  1991年   220篇
  1990年   215篇
  1989年   266篇
  1988年   236篇
  1987年   253篇
  1986年   180篇
  1985年   232篇
  1984年   176篇
  1983年   154篇
  1982年   213篇
  1981年   169篇
  1980年   160篇
  1979年   148篇
  1978年   134篇
  1977年   153篇
  1976年   141篇
  1975年   159篇
  1968年   159篇
排序方式: 共有10000条查询结果,搜索用时 9 毫秒
41.
A survey was conducted in early 1985 among 366 new mothers at 3 hospitals in Pinar del Rio, Cuba, to assess their level of health information regarding the care of newborns. The 11 study variables included breastfeeding, weaning, bathing the newborn, care of clothing and equipment for the baby, well baby visits, vaccination, accidents and safety, parent-child relations, sex education, and the puerperium. The level of information on these topics was generally low and was adequate only for breastfeeding. The information deficit was not related to urban or rural residence, parity, or educational level. The lack of knowledge of new mothers was attributed to the lack of motivation of health personnel at all levels to provide health education, inadequate use of existing information channels, and a lack of emphasis on health education within the general educational system.  相似文献   
42.
The capacity of blood pressure cuffs to act as vehicles of hospital infection has been recognised. We describe the microbial flora of in-use DINAMAP blood pressure cuffs used in the operating theatres and one recovery room in a teaching hospital. Our results show significant microbial contamination of in-use blood pressure cuffs.  相似文献   
43.
44.
45.
Anatomically, the thigh is well covered by soft tissue in the form of the muscles surrounding the shaft. In the assessment of the severity of an injury, not only the obvious skin wound but also the mechnism of the trauma has to be considered. The extent and severity of the soft tissue damage cannot usually be fully established until later in the course of treatment, when necrosis of the skin, the subcutaneous fat and the musculature and also compartment syndrome or a secondary disturbance of perfusion may become obvious. Therefore, when extensive soft tissue injuries are present, following the primary débridement, a repeat wound débridement after 24–48 hours is generally indicated. Only after consolidation of the wounds and the successful treatment of any infection is definitive soft tissue reconstruction performed. The main danger in the treatment of soft tissue injuries of the thigh is underestimation of their total extent.  相似文献   
46.
47.
We describe the clinical and pathological findings of the hemolytic uremic syndrome (HUS) in two children with human immunodeficiency virus (HIV) infection. Both patients presented with microangiopathic hemolytic anemia, thrombocytopenia, and subsequently developed renal failure. The diagnosis of HUS was confirmed by renal histopathology in both patients. None of these children presented with bloody diarrhea, evidence of circulating antibody response to Escherichia coli O157 lipopolysaccharide, or other known risk factors for HUS, except for the presence of HIV infection. Each patient was treated with intravenous plasma infusion and renal replacement therapy. Their clinical course was characterized by non-oliguria and lack of significant hypertension throughout the acute phase of the disease. Despite these favorable clinical parameters, both patients developed end-stage renal failure. The etiology of this atypical HUS characterized by poor renal survival remains unknown and the role of HIV infection in its pathogenesis, although possible, is unclear. Received March 5, 1996; received in revised form and accepted October 15, 1996  相似文献   
48.
49.
Background: Docetaxel, a semi-synthetic taxane may cause a usuallymild sensory neuropathy. We describe the clinical characteristics of fivepatients who developed a more severe neuropathy following treatment withdocetaxel.Patients and methods: All patients were treated in phase II studieswith 100 mg/m2 docetaxel in three weekly cycles, withoutsteroid administration.Results: The clinical picture in these patients was dominated by asensory neuropathy, but in one case severe weakness was present. Anotherpatient developed Lhermitte's sign. Signs and symptoms are usually reversibleafter discontinuation of docetaxel administration, but in three patientssymptoms worsened for some time after the end of treatment before improvementoccurred.Conclusion: Severe docetaxel neuropathy may especially occurfollowing treatment with cumulative dosage over 600 mg/m2; inpatients treated with this dosage a moderate or severe neuropathy may not berare.  相似文献   
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