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   1073032篇
  免费   84457篇
  国内免费   2752篇
耳鼻咽喉   14061篇
儿科学   36819篇
妇产科学   30120篇
基础医学   156325篇
口腔科学   29561篇
临床医学   99828篇
内科学   207052篇
皮肤病学   24019篇
神经病学   85379篇
特种医学   40937篇
外国民族医学   313篇
外科学   160323篇
综合类   25436篇
一般理论   457篇
预防医学   86887篇
眼科学   24310篇
药学   77959篇
  4篇
中国医学   2102篇
肿瘤学   58349篇
  2018年   12003篇
  2017年   9269篇
  2016年   10464篇
  2015年   11805篇
  2014年   16025篇
  2013年   24571篇
  2012年   32430篇
  2011年   34527篇
  2010年   20525篇
  2009年   19317篇
  2008年   31970篇
  2007年   33976篇
  2006年   34349篇
  2005年   33027篇
  2004年   32130篇
  2003年   30810篇
  2002年   29724篇
  2001年   49227篇
  2000年   50379篇
  1999年   42359篇
  1998年   12202篇
  1997年   10913篇
  1996年   10946篇
  1995年   10514篇
  1994年   9830篇
  1993年   9147篇
  1992年   34015篇
  1991年   33153篇
  1990年   32602篇
  1989年   31433篇
  1988年   28635篇
  1987年   28783篇
  1986年   26838篇
  1985年   25975篇
  1984年   19583篇
  1983年   16564篇
  1982年   10036篇
  1981年   9003篇
  1979年   17900篇
  1978年   13005篇
  1977年   10962篇
  1976年   10356篇
  1975年   10818篇
  1974年   13046篇
  1973年   12490篇
  1972年   11525篇
  1971年   10672篇
  1970年   9890篇
  1969年   9215篇
  1968年   8577篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
61.
62.
In 1963, Goffman argued that forming a group based on shared stigma may provide benefits. However, there is no empirical research on whether perception that a separate, unique, coherent group exists (i.e., group entitativity) influences coping, such as educating others or secrecy, for the stigmatized individual or his or her spouse. Further, little is known about how spouses influence each other in terms of promoting the education of others about a stigmatizing condition, especially when it comes to the role of believing that stigma-based groups, to which they may both belong, exist. This study provides a step toward bridging this gap in the research by applying the label management model in efforts to understand coping for couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). This study included 50 married couples in which one spouse is diagnosed with genetic mutations leading to alpha-1 antitrypsin deficiency (AATD). We found that group entitativity related to those with AATD counterbalanced the influence of genetic stigma on spouses’ intentions to keep the diagnosis secret or to educate others about it. Intrapersonal and interpersonal influences appeared among spouses. Attention is needed on the power of creating groups for stigmatized persons and their relatives. Indeed, people live within a dynamic world of group entities, and multiple social identities including spousal and familial. While attention has been paid to the diffusion of stigmas to loved ones, less has been paid to the uplift of group entities for them.  相似文献   
63.
64.
65.
66.
67.
68.
69.

Background

Arterial vascular anomalies in patients undergoing kidney transplantation (KT) are correlated with a higher incidence of early surgical complications, potentially causing graft loss. Arterial reconstruction allows patients to overcome these surgical challenges, thus minimizing the risk of poor outcomes. The aim of the present study is to retrospectively investigate the safety and effectiveness of the multiple arterial reconstruction technique with a Teflon patch in case of an unavailable aortic patch: to do so, surgical complications, graft function, and patient survival were evaluated.

Methods

During the period January 2009 to August 2016, 202 adult deceased-donor KTs were performed at our center. Group A (n = 27; reconstruction of multiple arteries) and Group B (n = 175; control group) were compared.

Results

No differences were observed between the 2 groups in terms of early postoperative course, with no vascular complication observed in Group A. No vascular patch infections were reported, nor longer cold ischemia time rates. Similarly, long-term survival rates were similar between the 2 groups.

Conclusions

The Teflon-patch arterial reconstruction technique appears to be safe and effective, with an acceptable balance of benefits and potential risks of using a prosthetic material. Studies based on larger series are needed to further validate this approach.  相似文献   
70.
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