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   6821篇
  免费   465篇
  国内免费   198篇
耳鼻咽喉   58篇
儿科学   80篇
妇产科学   25篇
基础医学   228篇
口腔科学   69篇
临床医学   1002篇
内科学   927篇
皮肤病学   12篇
神经病学   294篇
特种医学   437篇
外国民族医学   1篇
外科学   1503篇
综合类   1456篇
现状与发展   1篇
预防医学   278篇
眼科学   277篇
药学   499篇
  8篇
中国医学   153篇
肿瘤学   176篇
  2024年   9篇
  2023年   120篇
  2022年   198篇
  2021年   258篇
  2020年   283篇
  2019年   224篇
  2018年   210篇
  2017年   246篇
  2016年   317篇
  2015年   323篇
  2014年   646篇
  2013年   516篇
  2012年   486篇
  2011年   517篇
  2010年   420篇
  2009年   353篇
  2008年   274篇
  2007年   326篇
  2006年   275篇
  2005年   228篇
  2004年   171篇
  2003年   146篇
  2002年   138篇
  2001年   89篇
  2000年   91篇
  1999年   59篇
  1998年   53篇
  1997年   61篇
  1996年   41篇
  1995年   42篇
  1994年   46篇
  1993年   34篇
  1992年   27篇
  1991年   28篇
  1990年   38篇
  1989年   20篇
  1988年   33篇
  1987年   27篇
  1986年   20篇
  1985年   18篇
  1984年   10篇
  1983年   12篇
  1982年   10篇
  1981年   10篇
  1980年   8篇
  1979年   4篇
  1978年   6篇
  1977年   5篇
  1976年   7篇
  1967年   1篇
排序方式: 共有7484条查询结果,搜索用时 78 毫秒
991.
目的 探讨老年慢性硬膜下血肿钻孔引流术后高压氧的治疗效果.方法 回顾性分析75例老年慢性硬膜下血肿治疗资料.结果 39例术后高压氧治疗,血肿4周内消失.36例未行高压氧治疗,34例血肿约6周内消失,2例复发.结论 老年慢性硬膜下血肿钻孔引流术后高压氧治疗,可缩短治疗时间并减少复发.  相似文献   
992.
We investigated the clinical background of patients at Shin-Kokura Hospital who showed a positive culture of pleural effusion during the period from January 1998 through December 2002. Microorganism cultures of the pleural effusions of 127 patients were performed in this 5-year period. Seventeen patients showed a positive microorganism culture from a pleural effusion, and 12 of these patients (70.6%) were 60 years old or more. Ten patients were diagnosed with thoracic empyema. Thirteen patients had an underlying disease such as malignancy (5 cases), diabetes mellitus (4 cases), etc. A purulent effusion and a high concentration of lactic dehydrogenase (LDH) in the pleural fluid were more frequently recognized in the positive-culture group. A total of 21 strains of microorganism were isolated from the 17 patients, including 10 strains of Gram-positive cocci, 6 strains of Gram-negative bacilli, 3 strains of anaerobes, 1 strain of mycobacterium (Mycobacterium tuberculosis), and 1 strain of fungus. Susceptibility to antimicrobial agents was generally good for most of the microorganisms isolated. Of the 17 patients, chest-tube drainage was performed in 13, and 6 needed a surgical operation. Twelve patients improved, but 5 died. In this study, thoracic empyema accounted for 58.8% of the 17 cases with a positive culture of pleural effusion. Of the 10 thoracic empyema patients, 5 patients needed surgical treatment in spite of adequate antimicrobial treatment and chest-tube drainage. Our data indicate that thoracic empyema is still difficult to treat, and thus adequate and rapid treatment is needed for any pleural infection.  相似文献   
993.
胸腔引流管的护理进展   总被引:5,自引:0,他引:5  
刘蕊李楠  李艳平 《护理研究》2006,20(7):1805-1807
从胸腔引流管的改进、引流管的用途及放置部位、胸腔引流瓶的改进、胸部引流护理应注意的问题等方面综述了胸腔引流管的护理进展。  相似文献   
994.
The authors experienced a case of Mirizzi’s syndrome successfully treated with endoscopic nasogallbladder drainage (ENGBD). The patient was a 63‐year‐old man. He was admitted with abdominal pain and jaundice. Laboratory data indicated leukocytosis and elevation of serum bilirubin level. Abdominal ultrasound showed marked swelling of gallbladder and debris in the gallbladder, therefore, the authors strongly suspected Mirizzi’s syndrome. He had past history of acute myocardial infarction and treated with anticoagulation therapy. Then, the authors couldn’t perform surgical removal or percutaneous transhepatic drainage, and tried endoscopic transpapillary drainage. Endoscopic retrograde cholangiopancreatography revealed smooth stricture in the superior portion of common bile duct and occlusion of the cystic duct, and ENGBD was then performed. After ENGBD, his complaints, laboratory data, swelling of gallbladder and stricture of common bile duct were all remarkably improved.  相似文献   
995.
Endoscopic nasobiliary drainage (ENBD) is a well established mode of biliary decompression. Although ENBD is certainly an uncomfortable procedure with the potential risk of spontaneous dislocation or removal of the drainage catheter by disoriented patients, it has several advantages over endoscopic biliary drainage (EBD) using an indwelling stent. The current indications for ENBD are: (i) temporary drainage to treat obstructive jaundice and cholangitis caused by malignant or benign biliary stricture; (ii) urgent drainage to treat suppurative cholangitis primarily caused by common bile duct stones; (iii) temporary drainage after stone removal in patients with suspected incomplete clearance and/or with cholangitis; and (iv) biliary leaks that occur primarily after surgery, as well as other indications. Different types of nasobiliary catheters are currently available that have been designed with various diameters, shapes, and materials. However, the current catheters are not considered by most endoscopists to be sufficient. Further improvements are needed to achieve better drainage and better maneuverability.  相似文献   
996.
自发性气胸的临床特点与治疗对策   总被引:8,自引:8,他引:0  
目的通过对多种自发性气胸的临床表现采用不同的治疗方法,达到治愈。方法根据不同临床表现及气胸压缩程度采取人工抽气、闭式引流术、胸膜粘连术等检测效果。结论96例病人中治愈90例,说明采用适用的方法可有效地治疗自发性气胸。  相似文献   
997.
B超引导下穿刺置管引流术治疗肝脓肿 92例临床分析   总被引:4,自引:0,他引:4  
目的探讨肝脓肿在超声引导下穿刺置管引流术对肝脓肿治疗的疗效.方法回顾性分析1998年3月~2004年3月,92例肝脓肿病人的临床资料.结果本组92例病人共进行102次穿刺置管引流术,总治愈率为96.63%,平均疗程19天(8~30天).术后无腹腔内出血、气胸、脓胸及严重腹腔感染等并发症.治疗效果满意.结论B超引导下肝脓肿穿刺置管引流术具有简便、安全、住院时间短、费用少,并发症低的优点,可用于治疗大多数肝脓肿.  相似文献   
998.
我科自1995年1月至2005年1月共收治原发性脑室出血23例,经双侧侧脑室外引流并脑脊液置换术冶疗取得较好效果,现报道如下。  相似文献   
999.
目的:探讨改良切开引流术治疗直肠壁内脓肿的临床效果。方法:将32例直肠壁内脓肿患者随机分为改良切开引流术(治疗组)和传统切开引流术(对照组)治疗,每组16例,对比观察两组治愈率、创面愈合时间、肛门功能状况、术后复发以及术后并发症情况。结果:治疗组与对照组比较,治疗组治愈率高100%,(P<0·05);创面愈合时间短(17·3±2·5)d,P<0·01;但肛门功能、术后复发及术后并发症两组差异无统计学意义(P>0·05)。结论:改良切开引流术在治疗直肠壁内脓肿方面明显优于传统手术。  相似文献   
1000.
We performed laparoscopic appendectomy and drainage to treat panperitonitis due to perforated appendicitis that occurred in a 28‐year‐old woman. We believe this is an appropriate procedure to treat perforated appendicitis because it is safe and minimally invasive, and faster recovery can be expected than after conventional open appendectomy.  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