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   246124篇
  免费   7337篇
  国内免费   673篇
耳鼻咽喉   3433篇
儿科学   8647篇
妇产科学   7154篇
基础医学   32524篇
口腔科学   7282篇
临床医学   20856篇
内科学   46051篇
皮肤病学   5422篇
神经病学   16813篇
特种医学   12395篇
外国民族医学   100篇
外科学   35527篇
综合类   1457篇
一般理论   45篇
预防医学   19889篇
眼科学   5096篇
药学   17121篇
  3篇
中国医学   207篇
肿瘤学   14112篇
  2021年   1267篇
  2019年   1074篇
  2018年   4664篇
  2017年   4894篇
  2016年   4396篇
  2015年   6099篇
  2014年   5948篇
  2013年   5846篇
  2012年   13417篇
  2011年   8597篇
  2010年   4495篇
  2009年   5928篇
  2008年   5313篇
  2007年   6333篇
  2006年   6221篇
  2005年   14250篇
  2004年   15447篇
  2003年   10942篇
  2002年   5974篇
  2001年   4889篇
  2000年   2211篇
  1999年   6444篇
  1998年   1118篇
  1992年   7151篇
  1991年   7390篇
  1990年   7623篇
  1989年   7231篇
  1988年   6730篇
  1987年   6458篇
  1986年   6195篇
  1985年   5514篇
  1984年   3827篇
  1983年   3132篇
  1982年   1217篇
  1980年   999篇
  1979年   3993篇
  1978年   2537篇
  1977年   1949篇
  1976年   1688篇
  1975年   2629篇
  1974年   3240篇
  1973年   2858篇
  1972年   2845篇
  1971年   2847篇
  1970年   2637篇
  1969年   2530篇
  1968年   2310篇
  1967年   2254篇
  1966年   1952篇
  1965年   1171篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Die Anaesthesiologie - Phantomschmerzen haben eine hohe Prävalenz nach Majoramputationen und sind mit einer zusätzlichen Einschränkung der Lebensqualität verbunden....  相似文献   
2.
3.
4.
Introduction: The Hedgehog (HH) pathway constitutes a collection of signaling molecules which critically influence embryogenesis. In adults, however, the HH pathway remains integral to the proliferation, maintenance, and apoptosis of adult stem cells including hematopoietic stem cells.

Areas covered: We discuss the current understanding of the HH pathway as it relates to normal hematopoiesis, the pathology of acute myeloid leukemia (AML), the rationale for and data from combination therapies including HH pathway inhibitors, and ultimately the prospects that might offer promise in targeting this pathway in AML.

Expert opinion: Efforts to target the HH pathway have been focused on impeding this disposition and restoring chemosensitivity to conventional myeloid neoplasm therapies. The year 2018 saw the first approval of a HH pathway inhibitor (glasdegib) for AML, though for an older population and in combination with an uncommonly-used therapy. Several other clinical trials with agents targeting modulators of HH signaling in AML and MDS are underway. Further study and understanding of the interplay between the numerous aspects of HH signaling and how it relates to the augmented survival of AML will provide a more reliable substrate for therapeutic strategies in patients with this poor-risk disease.  相似文献   

5.
6.
Despite common experiences of identity damage, decline, and deterioration, many brain injury survivors succeed in reconstructing robust identities in the wake of injury. Yet, while this accomplishment greatly benefits survivors’ quality of life, little is known about how positive identity work might be facilitated or enhanced in therapeutic institutions. Drawing on data from a women’s self-help group, we argue that an egalitarian, reflective, strength-focused, and gender-segregated environment can provide female ABI (acquired brain injury) survivors with a fertile scene for identity enhancement and offer unique opportunities for collective identity development. Sociolinguistic interactional analysis revealed four types of positive identity work undertaken within the group: constructing competent selves; tempering the threat of loss and impairment; resisting infantilisation and delegitimisation; and asserting a collective gender identity. This identity work was facilitated by specific programme attributes and activities and contributed to the global project of decentring disability and destigmatising impairments and losses. We call for increased attention to identity issues in brain injury rehabilitation and argue that gender-segregated programming can provide a unique space for female survivors to construct empowering individual and collective identities after injury.  相似文献   
7.
8.
9.
10.
Dupuytren’s disease with severe finger contractures and recurrent contractures following previous surgery often have extensive skin involvement. In these severe cases, excision of the diseased chord along with the involved skin is a good option to reduce the risk of recurrance. The resulting skin defect can be covered with a full thickness skin graft (FTSG) or a cross finger flap. Cross finger flaps have donor finger morbidity and hence a full thickness graft is usually preferred. The FTSG extending to the midlateral margins on both sides of the finger reduces the risk of joint contracture due to graft shrinkage. Once the FTSG is sutured in place, the standard practice is to compress and secure the graft to its recipient bed with a tie-over dressing and this can be time consuming. We present a simple dressing technique to secure the FTSG without the need for a tie-over dressing.  相似文献   
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