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   936篇
  免费   42篇
  国内免费   2篇
耳鼻咽喉   5篇
儿科学   42篇
妇产科学   9篇
基础医学   90篇
口腔科学   18篇
临床医学   54篇
内科学   301篇
皮肤病学   17篇
神经病学   33篇
特种医学   25篇
外科学   147篇
综合类   17篇
预防医学   41篇
眼科学   19篇
药学   42篇
中国医学   1篇
肿瘤学   119篇
  2023年   9篇
  2022年   9篇
  2021年   54篇
  2020年   33篇
  2019年   23篇
  2018年   45篇
  2017年   30篇
  2016年   28篇
  2015年   30篇
  2014年   51篇
  2013年   46篇
  2012年   91篇
  2011年   79篇
  2010年   39篇
  2009年   22篇
  2008年   45篇
  2007年   53篇
  2006年   41篇
  2005年   31篇
  2004年   34篇
  2003年   26篇
  2002年   20篇
  2001年   16篇
  2000年   15篇
  1999年   6篇
  1998年   8篇
  1997年   6篇
  1996年   4篇
  1995年   4篇
  1994年   4篇
  1992年   2篇
  1991年   6篇
  1990年   8篇
  1989年   5篇
  1988年   4篇
  1987年   2篇
  1986年   5篇
  1985年   2篇
  1983年   2篇
  1981年   2篇
  1979年   5篇
  1976年   3篇
  1975年   2篇
  1974年   5篇
  1973年   2篇
  1972年   4篇
  1971年   2篇
  1970年   3篇
  1968年   2篇
  1964年   2篇
排序方式: 共有980条查询结果,搜索用时 796 毫秒
11.
12.
13.
14.
Purpose The poor prognosis in patients with floating knee injuries is mainly contributed to articular involvement(Fraser’s typeⅡ).This study aims to evaluate and compare the functional outcomes among different Fraser’s typeⅡfloating knee injuries after surgical management.Methods Twenty-seven patients with Fraser’s typeⅡfloating knee injuries(54 fractures)between September 2014 and December 2015 were enrolled prospectively in this study and were distributed according to Fraser’s floating knee classification into three different groups as typeⅡA(ipsilateral femoral shaft and tibial intra-articular involvement,n=11),typeⅡB(ipsilateral tibial shaft and femoral intra-articular involvement,n=9)and typeⅡC(both femoral and tibial intra-articular involvement,n=7).The differences among the groups were evaluated and compared.The functional outcomes of these injuries at one year were analyzed using Knee Injury and Osteoarthritis Outcome Score(KOOS)which covers 5 subscales of pain,other symptoms,activities of daily living,sports and recreation,and quality of life.The result was also compared with standardized age-sex matched healthy population using paired samples t-test.Results All the patients were male,and the injury mechanism was solely roadside accident.The mean age was 29.8 years and injury severity score 17.9(comparable in all the three groups).Most injuries were observed on the right side(20 cases,74.1%).Based on paired samples t-test,the KOOS score of patients with Fraser’s typeⅡA was found to be better than that of typeⅡB and typeⅡC.Compared with the reference age-sex matched control group,patients with Fraser’s typeⅡB andⅡC fractures had significantly lower mean score in all KOOS subscales(all p<0.01).However,Fraser’s typeⅡA only revealed significant difference regarding the subscales of activities of daily living(p<0.0001),sports and recreation(p<0.0001),and quality of life(p<0.0001).Conclusion The results of this study show that patients with Fraser’s typeⅡA fractures had a better functional outcome as compared to those with typeⅡB andⅡC fractures.This might be due to the open intra-articular involvement of the distal femur of the latter two fracture types.  相似文献   
15.
Craniofacial osteogenic sarcomas are rare primary malignant bone tumors and very few cases involving zygomatic bone were reported in literature. We present our experience of multimodality management of a case of primary osteogenic sarcoma of zygoma. Wide radical excision of the tumor including the parotid gland was done followed by three cycles of adjuvant chemotherapy and fifty Gy of external radiotherapy. The patient is disease-free at two years follow-up. Till 1970s, craniofacial osteogenic sarcomas were managed mainly by radical surgery with a high local failure rate. With the advances made in the field of radiotherapy and chemotherapy, multimodality therapy is playing a major role in the treatment of these aggressive tumors with better overall and disease-free survival.  相似文献   
16.
17.
The aim of this study is to conceive a method of raising an island PMMC flap, so as to circumvent its drawbacks of bulk, flap length and the difficulty of developing this flap in female patients. And to consider island PMMC flap as a viable reconstructive option in head and neck surgeries, especially in peripheral centres. Ours is an experimental case series. The study was done at Sri Devaraj URS Medical college, Tamaka, Kolar. Between 2009 and 2010, head and neck reconstruction was performed using this method in 20 patients who had oral cancer (18), carcinoma supraglottis (1) and mucoepidermoid carcinoma parotid (1). The patients age ranged from 16 to 75 years, and there were 15 women and 5 men. Nineteen of our patients underwent primary surgery and one patient was operated for residual disease. In (16) patient, island pmmc flap was used for intra oral closure. In (4) patients the flap was spiraled for providing skin cover. Four patients developed complications. Three were minor complications of margin necrosis and wound dehiscence, which were managed conservatively. One patient developed orocutaneous fistula, which required secondary suturing. None of our patients had a total necrosis of the flap. Island PMMC flap is still a very useful and viable option for reconstruction in head and neck surgeries, especially in lateral gingivo buccal tumours and other head and neck tumours. In institutions where microvascular expertise is not available, island PMMC flap can be an alternative with results comparable to that of free tissue transfer.  相似文献   
18.
19.
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