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   14050篇
  免费   826篇
  国内免费   216篇
耳鼻咽喉   239篇
儿科学   138篇
妇产科学   232篇
基础医学   1985篇
口腔科学   211篇
临床医学   1101篇
内科学   2576篇
皮肤病学   428篇
神经病学   841篇
特种医学   907篇
外科学   1750篇
综合类   668篇
现状与发展   1篇
一般理论   2篇
预防医学   797篇
眼科学   435篇
药学   1318篇
中国医学   225篇
肿瘤学   1238篇
  2023年   58篇
  2022年   200篇
  2021年   403篇
  2020年   203篇
  2019年   376篇
  2018年   417篇
  2017年   359篇
  2016年   544篇
  2015年   687篇
  2014年   734篇
  2013年   862篇
  2012年   1350篇
  2011年   1342篇
  2010年   832篇
  2009年   561篇
  2008年   865篇
  2007年   713篇
  2006年   626篇
  2005年   663篇
  2004年   661篇
  2003年   654篇
  2002年   563篇
  2001年   227篇
  2000年   173篇
  1999年   196篇
  1998年   150篇
  1997年   133篇
  1996年   35篇
  1995年   36篇
  1994年   39篇
  1993年   57篇
  1992年   56篇
  1991年   38篇
  1990年   26篇
  1989年   34篇
  1988年   22篇
  1987年   19篇
  1986年   13篇
  1985年   14篇
  1984年   11篇
  1983年   12篇
  1982年   10篇
  1981年   10篇
  1980年   23篇
  1979年   7篇
  1978年   6篇
  1971年   4篇
  1970年   5篇
  1969年   4篇
  1922年   4篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
Social Psychiatry and Psychiatric Epidemiology - The negative effect of catastrophic financial loss on suicide risk is widely perceived but hardly studied in-depth because of various difficulties...  相似文献   
2.
Direct peroral cholangioscopy (POC) using an ultra‐slim upper endoscope is one modality of POC for intraductal endoscopic evaluation and treatment of the bile duct. Choledochoduodenostomy (CDS) is one modality of biliary bypass surgery that provides a new route to the bile duct. We carried out direct POC using an ultra‐slim upper endoscope without the use of accessories in 10 patients (four sump syndromes, three bile duct strictures and three intrahepatic duct stones) previously undergoing surgical CDS. Direct POC was successful in all patients. The use of an intraductal balloon catheter was required in one patient for advancement of the endoscope into the bile duct. Distal bile ducts with sump syndromes were cleared using baskets and water irrigation under direct POC. Cholangiocarcinoma was diagnosed in one patient with hilar bile duct stricture after cholangioscopic evaluation and a targeting forceps biopsy under direct POC. Intrahepatic duct stones were successfully extracted after intraductal fragmentation under direct POC. Oozing bleeding occurred during intraductal lithotripsy but stopped spontaneously. Direct POC using an ultra‐slim upper endoscope without the assistance of accessories can easily be carried out in patients undergoing CDS.  相似文献   
3.
4.
5.
Erythema induratum of Bazin (EIB) is a form of tuberculid resulting from hypersensitivity to tuberculosis antigen. EIB occurs most commonly in middle‐aged women and is not typically seen in children. Here, we present a rare case of EIB, presenting as a chronic nodular panniculitis, in a 10‐year‐old Korean boy.  相似文献   
6.
No national epidemiological investigations have been conducted recently regarding facial lacerations. The study was performed using the data of 3,634,229 people during the 5-year period from 2014 to 2018 archived by the National Health Information Database (NHID) of the Health Insurance Review and Assessment Service. Preschool and children under 10 years old accounted for about one-third of patients. Facial lacerations were concentrated in the “T-shaped” area, which comprised forehead, nose, lips, and the perioral area. The male to female ratio for all study subjects was 2.16:1. Age and gender are significantly related with each other (P < .001). Mean hospital stays decreased, and numbers of outpatient department visits per patient were highest for hospitals and lowest for health agencies. Over the study period, hospital costs per patient in tertiary and general hospitals increased gradually. Preschool and school-aged children are vulnerable to trauma. Male patients outnumbered female patients by a factor of more than 2. The “T-shaped’” area around forehead is vulnerable to injury. Total cost of medical care benefits per patient in tertiary hospitals was about 7 times on average than in health agencies. Regarding functional, behavioral, and aesthetic outcomes, more attention should be paid to epidemiologic data and hospital costs for facial lacerations.  相似文献   
7.
8.
9.
10.
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