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   666篇
  免费   42篇
  国内免费   4篇
耳鼻咽喉   1篇
儿科学   43篇
妇产科学   14篇
基础医学   90篇
口腔科学   28篇
临床医学   44篇
内科学   124篇
皮肤病学   16篇
神经病学   11篇
特种医学   144篇
外国民族医学   1篇
外科学   38篇
综合类   53篇
预防医学   42篇
眼科学   5篇
药学   22篇
中国医学   4篇
肿瘤学   32篇
  2021年   8篇
  2020年   6篇
  2019年   5篇
  2018年   13篇
  2017年   11篇
  2016年   14篇
  2015年   12篇
  2014年   18篇
  2013年   32篇
  2012年   25篇
  2011年   19篇
  2010年   44篇
  2009年   44篇
  2008年   26篇
  2007年   22篇
  2006年   11篇
  2005年   9篇
  2004年   9篇
  2003年   4篇
  2002年   4篇
  2001年   5篇
  2000年   6篇
  1999年   7篇
  1998年   34篇
  1997年   33篇
  1996年   35篇
  1995年   35篇
  1994年   23篇
  1993年   20篇
  1992年   4篇
  1991年   4篇
  1990年   7篇
  1989年   16篇
  1988年   14篇
  1987年   10篇
  1986年   13篇
  1985年   9篇
  1984年   12篇
  1983年   14篇
  1982年   12篇
  1981年   13篇
  1980年   15篇
  1979年   4篇
  1978年   8篇
  1977年   2篇
  1976年   8篇
  1975年   5篇
  1955年   1篇
  1950年   1篇
  1949年   1篇
排序方式: 共有712条查询结果,搜索用时 15 毫秒
101.
102.
103.
We present the case of a 19-year-old individual presenting to an orthopaedic outpatient clinic several months following a dashboard knee injury during a road traffic accident with intermittent mechanical symptoms. Despite unremarkable examination findings and normal magnetic resonance imaging, the patient was identified subsequently as having an intra-articular plastic foreign body consistent with a piece of dashboard on arthroscopic knee assessment, the retrieval of which resulted in a complete resolution of symptoms.  相似文献   
104.
105.
Immature avulsed teeth are not usually treated with pulp revascularization because of the possibility of complications. However, this therapy has shown success in the treatment of immature teeth with periapical lesions. This report describes the case of an immature replanted tooth that was successfully treated by pulp revascularization. An 8‐year‐old boy suffered avulsion on his maxillary left lateral incisor. The tooth showed incomplete root development and was replanted after 30 minutes. After diagnosis, revascularization therapy was performed by irrigating the root canal and applying a calcium hydroxide paste and 2% chlorhexidine gel for 21 days. In the second session, the intracanal dressing was removed and a blood clot was stimulated up to the cervical third of the root canal. Mineral trioxide aggregate was placed as a cervical barrier at the entrance of the root canal and the crown was restored. During the follow‐up period, periapical repair, apical closure and calcification in the apical 4 mm of the root canal was observed. An avulsed immature tooth replanted after a brief extra‐alveolar period and maintained in a viable storage medium may be treated with revascularization.  相似文献   
106.
107.
Background: In the last decade, it has become clear that change of gene expression may alter the hematopoietic cell quiescent state and consequently play a major role in leukemogenesis. WT1 is known to be a player in acute myeloid leukemia (AML) and FOXP3 has a crucial role in regulating the immune response. Objectives: To evaluate the impact of overexpression of WT1and FOXP3 genes on clinical course in adult and pediatric AML patients in Egypt. Patients and methods: Bone marrow and peripheral blood samples were obtained from 97 de novo non M3 AML patients (63 adult and 34 pediatric). Real-time quantitative PCR was used to detect overexpression WT1 and FOXP3 genes. Patient follow up ranged from 0.2 to 39.0 months with a median of 5 months. Results: In the pediatric group; WT1 was significantly expressed with a high total leukocyte count median 50X109/L (p=0.018). In the adult group, WT1 had an adverse impact on complete remission induction, disease-free survival and overall survival (p=0.02, p=0.035, p=0.019 respectively). FOXP3 overexpression was associated with FAB subtypes AML M0 +M1 vs. M2, M4+M5 (p =0.039) and the presence of hepatomegaly (p=0.005). Conclusions: WT1 and FOXP3 overexpression has an adverse impact on clinical presentation, treatment response and survival of pediatric and adult Egyptian AML patients.  相似文献   
108.
109.
110.
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