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   859篇
  免费   49篇
  国内免费   1篇
耳鼻咽喉   12篇
儿科学   26篇
妇产科学   2篇
基础医学   114篇
口腔科学   76篇
临床医学   54篇
内科学   134篇
皮肤病学   10篇
神经病学   59篇
特种医学   12篇
外科学   132篇
综合类   19篇
预防医学   60篇
眼科学   51篇
药学   97篇
中国医学   7篇
肿瘤学   44篇
  2024年   1篇
  2023年   11篇
  2022年   25篇
  2021年   43篇
  2020年   13篇
  2019年   21篇
  2018年   29篇
  2017年   21篇
  2016年   26篇
  2015年   34篇
  2014年   41篇
  2013年   56篇
  2012年   77篇
  2011年   67篇
  2010年   36篇
  2009年   29篇
  2008年   58篇
  2007年   48篇
  2006年   42篇
  2005年   36篇
  2004年   37篇
  2003年   25篇
  2002年   26篇
  2001年   21篇
  2000年   14篇
  1999年   11篇
  1998年   8篇
  1997年   8篇
  1996年   5篇
  1995年   4篇
  1994年   3篇
  1993年   2篇
  1991年   3篇
  1990年   4篇
  1989年   4篇
  1988年   1篇
  1986年   4篇
  1985年   1篇
  1983年   1篇
  1981年   5篇
  1979年   3篇
  1977年   1篇
  1975年   1篇
  1974年   1篇
  1972年   2篇
排序方式: 共有909条查询结果,搜索用时 15 毫秒
11.
Anomalous coronary arteries occur in as many as 12% of patients with tetralogy of Fallot (TOF). In patients with this condition, pulmonary hypoplasia can be prohibitive in performing a valve-sparing repair, subsequently resulting in various techniques to preserve the anomalous coronary artery. The management strategy is often complex in such a situation. We report on a case of TOF with an anomalous right coronary artery crossing the right ventricular outflow tract, with an unusual course of the right ventricular (RV) branch, which precluded placement of a valved conduit. In this case, we performed a successful repair with mobilization of the anomalous coronary artery and reconstruction of the right ventricular outflow tract with a limited transannular patch.  相似文献   
12.
Tracheoesophageal fistula after blunt trauma is very rare. Typically the patient is a young male driving a car and is thrust onto the steering wheel following sudden deceleration as in a high speed road traffic accident. In our case that victim is a motorcyclist who fell down on his right side and developed such a fistula after 3 days. We report the clinical summary and a brief review of literature.  相似文献   
13.
14.
15.
16.
Purpose: The optimal number of fixation pins for minimally invasive cutting guides in computer-navigated arthroplasty has not been determined. The authors hypothesized that more fixation pins will lead to greater mechanical stability and more accurate resections. Materials and Method: 12 bovine knee joints were divided into three groups with differing numbers of fixation pins. The ASM [Stryker] knee navigation system was utilized to perform resections, and accuracy of alignment and posterior slope was measured. Comparison was performed between the groups to calculate average differences between predicted and actual resection with differing number of pins. Results: The difference between actual and predicted values showed a trend toward diminishing with a greater number of fixation pins. The mean difference in coronal alignment of predicted versus actual resection was 0.75° for two fixation pins, 0.5° for three pins and 1° for four fixation pins. Similarly, the difference between posterior slope was 2.75°, 2°, and 1°, respectively. Conclusion: This study reveals a trend toward greater accuracy of resections with more fixation pins. Further investigation may be beneficial.  相似文献   
17.
18.
19.
The novel gadgets are associated constantly at a quick phase for the development of Internet of Things (IoT). Wearable gadgets are another gathering development in those available gadgets. The recent method in gadgets is to coordinate with IoT and idea is implementing the remote sensor systems that convey novel encounters in day by day exercises. Here, I exhibit a regular day to day existence application including a Wireless Sensor Networks (WSN) for gaming situation. By using this, the physical factors of sports person are estimated and directed by wearable gadgets to Wireless Sensor Networks. The end goal to incorporate diverse equipment stages and to present an administration situated semantic middleware arrangement hooked on a solitary request also utilization of Enterprise Service Bus (ESB) is introduced as a scaffold to ensure coordination of the distinctive conditions and interoperability. Through proposed method everyone can procure information by introducing framework to fresh client. Those clients would be able to get to the information through a wide assortment of gadgets (cell phones, tablets, and PCs) and working frameworks (Android, Windows, Linux, iOS, and so on). Finally we introduced one case study of football match for monitoring 11 players and acquiring data’s and to predict the real time situation in football ground.  相似文献   
20.
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