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   385957篇
  免费   71137篇
  国内免费   22569篇
耳鼻咽喉   4403篇
儿科学   7473篇
妇产科学   5445篇
基础医学   54353篇
口腔科学   10302篇
临床医学   55849篇
内科学   68904篇
皮肤病学   10289篇
神经病学   30426篇
特种医学   13950篇
外国民族医学   213篇
外科学   45155篇
综合类   49594篇
现状与发展   76篇
一般理论   45篇
预防医学   22892篇
眼科学   10663篇
药学   37435篇
  327篇
中国医学   18277篇
肿瘤学   33592篇
  2024年   604篇
  2023年   4432篇
  2022年   7290篇
  2021年   17223篇
  2020年   16569篇
  2019年   20831篇
  2018年   20902篇
  2017年   20683篇
  2016年   20715篇
  2015年   25519篇
  2014年   28842篇
  2013年   26849篇
  2012年   26616篇
  2011年   29528篇
  2010年   24248篇
  2009年   17150篇
  2008年   18937篇
  2007年   17848篇
  2006年   17931篇
  2005年   17450篇
  2004年   11366篇
  2003年   10484篇
  2002年   9262篇
  2001年   8209篇
  2000年   8934篇
  1999年   9262篇
  1998年   5499篇
  1997年   5510篇
  1996年   4387篇
  1995年   3957篇
  1994年   3255篇
  1993年   2139篇
  1992年   2851篇
  1991年   2442篇
  1990年   2135篇
  1989年   1876篇
  1988年   1585篇
  1987年   1322篇
  1986年   1111篇
  1985年   934篇
  1984年   543篇
  1983年   400篇
  1982年   273篇
  1981年   278篇
  1980年   212篇
  1979年   231篇
  1978年   98篇
  1977年   99篇
  1974年   109篇
  1973年   92篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
82.
The current situation in which the humanities are disparaged affects all university disciplines, including nursing, in whose historical evolution the humanities have always been present in one form or another. Looking beyond this disrepute, this study proposes that nursing renew its attention to classical philosophy. Specifically, it invites a close reading of Xenophon's Anabasis and Plato's Meno, to get three related goals: to show how the use of ancient texts are very valuable tools for the philosophical initiation of nursing students and can help them reflect on their choice of nursing as a practical activity; to reflect on the problem of virtue and the nature of the good life; and to show how the interaction with ancient texts allows students to reflect on questions and issues of life, theirs and others, that are not open to investigation through a purely scientific method. Consequently, both Anabasis and Meno readings strengthen the intellectual relationship between philosophy and nursing, enabling the latter to delve deeper into the key questions of its own thought as a discipline.  相似文献   
83.
Since the new round of health care reform in 2009, the vertical integration of hospitals and primary health institutions has become widely implemented in China as an efficient method for improving quality of primary care. This study aimed to answer the following questions: (a) What is the perceived quality of township health centres (THCs) under integration? (B) What differences could be observed among the three typical integration models, namely, private hospital-THC integration, public hospital-THC integration, and loose collaboration? Two rounds of cross-sectional surveys were conducted from November 2016 to June 2018. The Chinese version of the Primary Care Assessment Tool was used to evaluate perceived quality of sample THCs, and 1118 adult patients were interviewed in total. Multiple linear regressions were employed to compare the quality scores between two survey rounds and among different integration models after controlling for potential confounders. The results revealed that the quality of care significantly improved under private hospital-THC integration as observed by comparing two survey rounds, while no change or slight changes were observed in the other two models. The difference observed among the three models was that the perceived quality of THCs integrated with private hospitals was worse than that of THCs integrated with public hospitals and THCs under loose collaboration, while no significant difference was observed between public hospital-THC integration and loose collaboration. Increased attention should be given to highlighting the tight integration between hospitals and THCs and the different roles played by private and public hospitals in the current reform.  相似文献   
84.
85.
患者男,64岁,因头颅增大、面部变长,颧骨隆起、下颌增大、双手掌肥厚、双手指粗短30余年,乳房肿物1年余就诊。患者30余年前无明显诱因出现渐进性手足增大,双手掌肥厚,嘴唇变厚,下颌增大,眉弓及颧骨突出,皮肤增厚,无乳腺增大、泌乳,未诊治……  相似文献   
86.
Wang  Di  Tao  Xiaogen  Fei  Mingming  Chen  Jian  Guo  Wei  Li  Ping  Wang  Jinquan 《Journal of neurovirology》2020,26(3):442-448

Pseudorabies virus (PRV) primarily infects swine but can infect cattle, dogs, and cats. Several studies have reported that PRV can cross the specie barrier and induce human encephalitis, but a definitive diagnosis of human PRV encephalitis is debatable due to the lack of PRV DNA detection. Here, we report a case of human PRV encephalitis diagnosed by the next-generation sequencing (NGS) of PRV sequences in the cerebrospinal fluid (CSF) of a patient. A male pork vendor developed fever and seizures for 6 days. NGS results showed PRV sequences in his CSF and blood. Sanger sequencing showed that PRV DNA in the CSF and PRV antibodies in both the CSF and blood were positive. MRI results revealed multiple inflammatory lesions in the bilateral hemisphere. Based on the clinical and laboratory data, we diagnosed the patient with PRV encephalitis. This case suggests that PRV can infect humans, causing severe viral encephalitis. People at risk of PRV infection should improve their self-protection awareness.

  相似文献   
87.
88.
89.
90.
李志道教授经过50余年临床实践研究,结合解剖学相关知识,发现委中、承山二穴在针刺深度与传统认识有所不同。其中,委中穴在刺入0. 5~0. 8寸,承山穴在刺入2. 0~3. 0寸时最易达到循经得气的效果,通过调整针尖方向还可较准确达到气至病所的效果,且针感与相应神经分布区域相吻合。该针感在某些疾病,尤其神经压迫相关症状的治疗中疗效明显,且优于传统教材所述针刺深度。  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