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   5571篇
  免费   416篇
  国内免费   12篇
耳鼻咽喉   33篇
儿科学   181篇
妇产科学   144篇
基础医学   872篇
口腔科学   65篇
临床医学   635篇
内科学   1200篇
皮肤病学   144篇
神经病学   443篇
特种医学   127篇
外科学   623篇
综合类   43篇
一般理论   2篇
预防医学   649篇
眼科学   92篇
药学   356篇
中国医学   4篇
肿瘤学   386篇
  2023年   34篇
  2022年   53篇
  2021年   137篇
  2020年   103篇
  2019年   155篇
  2018年   159篇
  2017年   121篇
  2016年   115篇
  2015年   157篇
  2014年   199篇
  2013年   251篇
  2012年   346篇
  2011年   422篇
  2010年   228篇
  2009年   207篇
  2008年   320篇
  2007年   333篇
  2006年   319篇
  2005年   311篇
  2004年   295篇
  2003年   298篇
  2002年   271篇
  2001年   106篇
  2000年   116篇
  1999年   98篇
  1998年   90篇
  1997年   56篇
  1996年   62篇
  1995年   48篇
  1994年   44篇
  1993年   17篇
  1992年   45篇
  1991年   43篇
  1990年   52篇
  1989年   36篇
  1988年   37篇
  1987年   36篇
  1986年   19篇
  1985年   37篇
  1984年   21篇
  1983年   28篇
  1980年   13篇
  1979年   13篇
  1978年   9篇
  1975年   13篇
  1974年   12篇
  1973年   9篇
  1972年   11篇
  1969年   11篇
  1966年   9篇
排序方式: 共有5999条查询结果,搜索用时 15 毫秒
1.
2.
3.
Medicine, Health Care and Philosophy - A life-threatening illness such as cancer can bring about much existential suffering and a disconnect to self in spite of surviving cancer. In my recent...  相似文献   
4.
5.
6.
We review the association between surgically resolvable aortic disease and horseshoe kidney with a discussion of diagnostic problems and therapeutic options.Male patient 81 years of age with horseshoe kidney and an abdominal aortic aneurysm that was discovered by chance in an abdominal ultrasound during a check-up for his prostate condition.A retroperitoneal approach was used in order to resect the aneurysm and perform an aorto-aortic bypass with no complications occurring. Two years after the diagnosis, the patient is still asymptomatic from a vascular point of view.The co-presence of horseshoe kidney and aortic disease needing surgical correction is infrequent, but it significantly increases the technical complexity of aortic reconstruction. A literature review is included.  相似文献   
7.
8.
CONTEXT & OBJECTIVE: The Ecuadorian GH receptor deficiency (GHRD)/Laron syndrome population is the only large cohort with a single GHR mutation (E180 splice), permitting identification of numerous carrier and noncarrier first-degree relatives, to ascertain effects of heterozygosity on GH-dependent IGF-I and IGFBP-3 concentrations and on growth. DESIGN: First-degree relatives (n=212) of GHRD patients had specimens taken for IGF-I, IGFBP-3, and GHR genotyping. Normal statured (n=40) and short statured (n=40) unrelated controls had measurement of IGF-I, IGFBP-3, and stature. RESULTS: There were no significant differences between heterozygous and homozygous normal relatives in IGF-I or IGFBP-3 standard deviation scores (SDS). Heterozygous relatives had lower mean height SDS than did homozygous normals, but with extensive overlap between genotype groups in both child and adult relatives. Height SDS in general did not relate to IGF-I or IGFBP-3 concentrations. CONCLUSIONS: GH-dependent IGF-I and IGFBP-3 secretion is not affected by heterozygosity for the E180 splice mutation that causes GHRD/Laron syndrome in the Ecuadorian population. Heterozygosity is associated with reduction in mean statural SDS, but this is not sufficient to be clinically important and not mediated through measurable differences in circulating IGF-I or IGFBP-3 related to genotype.  相似文献   
9.
10.
Purpose: To illuminate the history of nurses' participation in institution-building in the early 1900s, using the Baby Hospital in Oakland, California (now called Children's Hospital Oakland) as a case.
Design: Historical research using a framework of women's history theory focused on the women who founded Oakland's Baby Hospital, 1910–1930.
Method: Data collection included studying original sources, archival material, and interviews. Data evaluation included external criticism for authenticity and genuineness, and internal criticism for accuracy and bias.
Findings: In 1912, nurse Bertha Wright and social worker Mabel Weed, with a circle of community women, including Jessica Peixotto and Jean Howard McDuffie, established the Baby Hospital. Their activism included home visits, education, research, publications, political lobbying, and state policy and program development. At the center of this activity, was the lifelong commitment of Wright and Weed, who created new definitions of family. With social changes in the late 1920s, the male Board of Directors seized control of the hospital, and relegated women to auxiliary roles.
Conclusions: Health and social issues of the United States at the turn of the century are still problematic as a new century approaches and pertain to maternal-child health, foster care, and immigration. Feminists, including nurses, have played a central role in creating solutions. Knowledge of some of their incredible effort has been lost, particularly nursing's history in the western United States.  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