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   1376860篇
  免费   103756篇
  国内免费   4367篇
耳鼻咽喉   17160篇
儿科学   45131篇
妇产科学   37454篇
基础医学   202926篇
口腔科学   36401篇
临床医学   135148篇
内科学   265684篇
皮肤病学   27202篇
神经病学   115923篇
特种医学   49046篇
外国民族医学   366篇
外科学   188769篇
综合类   29242篇
现状与发展   1篇
一般理论   545篇
预防医学   120264篇
眼科学   29710篇
药学   101709篇
  6篇
中国医学   3214篇
肿瘤学   79082篇
  2021年   12266篇
  2019年   12989篇
  2018年   17781篇
  2017年   13453篇
  2016年   14389篇
  2015年   16434篇
  2014年   22557篇
  2013年   34458篇
  2012年   47729篇
  2011年   50304篇
  2010年   28959篇
  2009年   26483篇
  2008年   45459篇
  2007年   47815篇
  2006年   47804篇
  2005年   46042篇
  2004年   43716篇
  2003年   41327篇
  2002年   39967篇
  2001年   61216篇
  2000年   62810篇
  1999年   52599篇
  1998年   14869篇
  1997年   13520篇
  1996年   13315篇
  1995年   12643篇
  1994年   11764篇
  1993年   11066篇
  1992年   41762篇
  1991年   40912篇
  1990年   39633篇
  1989年   37510篇
  1988年   34724篇
  1987年   33825篇
  1986年   32273篇
  1985年   30763篇
  1984年   23164篇
  1983年   19684篇
  1982年   11815篇
  1979年   20901篇
  1978年   14900篇
  1977年   12123篇
  1976年   11949篇
  1975年   12189篇
  1974年   14882篇
  1973年   14562篇
  1972年   13434篇
  1971年   12480篇
  1970年   11543篇
  1969年   10490篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
71.
72.
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   
73.
74.
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   
75.
76.
77.
78.
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   
79.
80.
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