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   1304篇
  免费   58篇
  国内免费   33篇
耳鼻咽喉   26篇
儿科学   62篇
妇产科学   19篇
基础医学   111篇
口腔科学   27篇
临床医学   122篇
内科学   359篇
皮肤病学   109篇
神经病学   34篇
特种医学   207篇
外科学   116篇
综合类   29篇
预防医学   77篇
眼科学   6篇
药学   42篇
中国医学   3篇
肿瘤学   46篇
  2019年   9篇
  2018年   7篇
  2017年   12篇
  2016年   16篇
  2015年   22篇
  2014年   25篇
  2013年   67篇
  2012年   14篇
  2011年   14篇
  2010年   48篇
  2009年   57篇
  2008年   21篇
  2007年   30篇
  2006年   26篇
  2005年   30篇
  2004年   15篇
  2003年   12篇
  2002年   21篇
  2001年   20篇
  2000年   12篇
  1999年   21篇
  1998年   84篇
  1997年   72篇
  1996年   77篇
  1995年   49篇
  1994年   63篇
  1993年   52篇
  1992年   14篇
  1991年   16篇
  1990年   21篇
  1989年   41篇
  1988年   42篇
  1987年   32篇
  1986年   27篇
  1985年   26篇
  1984年   23篇
  1983年   12篇
  1982年   21篇
  1981年   18篇
  1980年   13篇
  1979年   17篇
  1978年   14篇
  1977年   16篇
  1976年   16篇
  1975年   12篇
  1973年   14篇
  1972年   9篇
  1971年   7篇
  1965年   6篇
  1957年   7篇
排序方式: 共有1395条查询结果,搜索用时 15 毫秒
21.
Infantile Digital Fibroma Treated With Mohs Micrographic Surgery   总被引:2,自引:0,他引:2  
John G. Albertini  MD  Maj  USAF  MC  Michael Jude Welsch  MD  CPT  USA  MC  Leo A. Conger  MD  LTC  USA  MC  Lester F. Libow  MD  COL  USA  MC    Dirk M. Elston  MD  COL  USA  MC 《Dermatologic surgery》2002,28(10):959-961
BACKGROUND: Infantile digital fibroma (IDF) is a rare benign fibrous tumor of childhood that frequently recurs despite local excision. Conservative, nonsurgical management may result in regression and/or joint deformity. OBJECTIVE: To describe the histologic features of IDF and discuss a case excised using Mohs micrographic surgery (MMS). METHODS: Case report and review of the clinical, histologic, and ultrastructural features. RESULTS: Characteristic inclusion bodies of actin were identified with hematoxylin and eosin, Masson's trichrome, and rapid actin immunostain. The tumor was debulked and the majority was removed after one stage of MMS, except where the deep margin approached the joint space. The defect healed by secondary intention. At 2 years the patient had no recurrence or functional joint deformity. CONCLUSION: MMS is a surgical treatment option for IDF.  相似文献   
22.
Splanchnic artery aneurysms and pseudoaneurysms: transcatheter embolization   总被引:9,自引:0,他引:9  
Baker  KS; Tisnado  J; Cho  SR; Beachley  MC 《Radiology》1987,163(1):135-139
Over the past 7 years, eight patients with splanchnic artery aneurysms and pseudoaneurysms were studied and treated. Transcatheter embolization resulted in occlusion of the lesions in all eight patients. Potentially risky and difficult surgery was avoided completely in four patients. Three patients had elective surgery at a later date when their condition was more stable. The remaining patient had definitive surgery after embolization. Transcatheter embolization should be the initial treatment of choice in splanchnic artery aneurysms and pseudoaneurysms.  相似文献   
23.
Pediatric tracheostomy dependence is associated with a variety of sequelae. Vocalization delay is commonplace and may result in long‐term communication disability. Passy‐Muir speaking valves are routinely used to allow such children to vocalize. Unfortunately, not all tracheostomy dependent children can tolerate the placement of a speaking valve. Elevated transtracheal pressures are often associated with failure. We describe a method of modifying a standard Passy‐Muir valve to decrease transtracheal pressures and thus improve tolerance of the valve. In our practice, the modification allows a broader range of children experience the benefit of speaking valve placement. Laryngoscope, 119:176–179, 2009  相似文献   
24.
25.
The incidence of coronary artery disease in patients coming to aortic surgery and the impact of aggressive preoperative cardiac catheterization and myocardial revascularization was prospectively analyzed in 59 patients. Seventy-five percent of patients had at least one-vessel involvement, and 32% had three-vessel or left main involvement. Patients with electrocardiographic evidence of coronary artery disease had at least one-vessel involvement 84% of the time and three-vessel, left main involvement 36% of the time. Sixty-four percent of patients with no preoperative indications of coronary artery disease had at least one-vessel involvement and 29% had three-vessel, left main involvement. Resting (39 patients) and exercise multiple-gated acquisition scans (22 patients) did not predict the presence of coronary artery disease in patients without a history or electrocardiographic evidence of coronary artery disease. Myocardial revascularization was performed prior to aortic surgery in 17 patients (29%). The operative mortality was 3.7% with two patients dying from noncardiac-related complications. There were two additional deaths prior to aortic surgery with one patient dying during coronary artery bypass grafting, and one dying of aneurysm rupture prior to repair, making the overall mortality associated with this approach 7.4%. Preoperative cardiac catheterization and an aggressive approach toward coronary artery bypass grafting reduces the risk of cardiac complications in aortic surgery.  相似文献   
26.
27.
Kim  SH; Chang  KH; Song  IC; Han  MH; Kim  HC; Kang  HS; Han  MC 《Radiology》1997,204(1):239
  相似文献   
28.
29.
30.
Summary We have presented an unusual case of benign lymphoid hyperplasia, which manifested as a cecal deformity in a 15-year-old boy. The clinical manifestation may have been related to partial occlusion of the appendiceal orifice. In future cases of benign lymphoid hyperplasia, colonoscopy may be diagnostic, and if it is used for continuing observation, may avert unnecessary surgical procedures in children and young adults.  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