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   1335563篇
  免费   99887篇
  国内免费   4263篇
耳鼻咽喉   16802篇
儿科学   43583篇
妇产科学   36359篇
基础医学   197832篇
口腔科学   35902篇
临床医学   129553篇
内科学   258072篇
皮肤病学   26375篇
神经病学   111865篇
特种医学   48171篇
外国民族医学   366篇
外科学   184037篇
综合类   28772篇
现状与发展   1篇
一般理论   460篇
预防医学   114387篇
眼科学   28978篇
药学   98854篇
  6篇
中国医学   3166篇
肿瘤学   76172篇
  2021年   10896篇
  2019年   11633篇
  2018年   16318篇
  2017年   12286篇
  2016年   13246篇
  2015年   15196篇
  2014年   20805篇
  2013年   32052篇
  2012年   44244篇
  2011年   46888篇
  2010年   27077篇
  2009年   24921篇
  2008年   42710篇
  2007年   45049篇
  2006年   45163篇
  2005年   43588篇
  2004年   41555篇
  2003年   39495篇
  2002年   38301篇
  2001年   60843篇
  2000年   62515篇
  1999年   52275篇
  1998年   14580篇
  1997年   13274篇
  1996年   13114篇
  1995年   12458篇
  1994年   11625篇
  1993年   10920篇
  1992年   41567篇
  1991年   40762篇
  1990年   39449篇
  1989年   37342篇
  1988年   34585篇
  1987年   33694篇
  1986年   32153篇
  1985年   30640篇
  1984年   23036篇
  1983年   19590篇
  1982年   11755篇
  1979年   20806篇
  1978年   14816篇
  1977年   12067篇
  1976年   11876篇
  1975年   12115篇
  1974年   14805篇
  1973年   14474篇
  1972年   13360篇
  1971年   12421篇
  1970年   11489篇
  1969年   10412篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
Bowel diseases of prematurity, including necrotizing enterocolitis, are dreaded ailments of neonates. Early diagnosis is difficult, with clinical and radiographic findings often inconclusive. We present a novel use of contrast-enhanced ultrasound in detection of pediatric bowel disease. Early identification of compromised blood flow or an at-risk bowel can be quantitatively detected and monitored. This ability has implications for guidance of emerging therapies, allowing targeting of inflammation. These findings represent an advancement in detection of bowel disease in neonates.  相似文献   
63.
64.
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   
65.
66.
67.
There is a large and growing population of long-term cancer survivors. Primary care physicians (PCPs) are playing an increasingly greater role in the care of these patients across the continuum of cancer survivorship. In this role, PCPs are faced with the responsibility of managing a range of medical and psychosocial late effects of cancer treatment. In particular, the sexual side effects of treatment which are common and have significant impact on quality of life for the cancer survivor, often go unaddressed. This is an area of clinical care and research that has received increasing attention, highlighted by the presentation of this special issue on Cancer and Sexual Health. The aims of this review are 3-fold. First, we seek to overview common presentations of sexual dysfunction related to major cancer diagnoses in order to give the PCP a sense of the medical issues that the survivor may present with. Barriers to communication about sexual health issues between patient/PCPs in order are also described in order to emphasize the importance of PCPs initiating this important conversation. Next, we provide strategies and resources to help guide the PCP in the management of sexual dysfunction in cancer survivors. Finally, we discuss case examples of survivorship sexual health issues and highlight the role that a PCP can play in each of these case examples.  相似文献   
68.
69.
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