全文获取类型
收费全文 | 1411篇 |
免费 | 112篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 9篇 |
儿科学 | 81篇 |
妇产科学 | 17篇 |
基础医学 | 151篇 |
口腔科学 | 35篇 |
临床医学 | 207篇 |
内科学 | 243篇 |
皮肤病学 | 33篇 |
神经病学 | 152篇 |
特种医学 | 173篇 |
外科学 | 66篇 |
综合类 | 23篇 |
一般理论 | 53篇 |
预防医学 | 102篇 |
眼科学 | 11篇 |
药学 | 114篇 |
肿瘤学 | 55篇 |
出版年
2021年 | 18篇 |
2018年 | 18篇 |
2016年 | 19篇 |
2015年 | 30篇 |
2014年 | 31篇 |
2013年 | 38篇 |
2012年 | 59篇 |
2011年 | 63篇 |
2010年 | 44篇 |
2009年 | 38篇 |
2008年 | 40篇 |
2007年 | 48篇 |
2006年 | 41篇 |
2005年 | 43篇 |
2004年 | 40篇 |
2003年 | 53篇 |
2002年 | 41篇 |
2001年 | 31篇 |
2000年 | 32篇 |
1999年 | 32篇 |
1998年 | 48篇 |
1997年 | 57篇 |
1996年 | 56篇 |
1995年 | 43篇 |
1994年 | 26篇 |
1993年 | 22篇 |
1992年 | 14篇 |
1991年 | 30篇 |
1990年 | 13篇 |
1989年 | 26篇 |
1988年 | 41篇 |
1987年 | 32篇 |
1986年 | 32篇 |
1985年 | 21篇 |
1984年 | 18篇 |
1983年 | 12篇 |
1982年 | 11篇 |
1981年 | 18篇 |
1979年 | 21篇 |
1978年 | 15篇 |
1977年 | 15篇 |
1976年 | 10篇 |
1975年 | 20篇 |
1974年 | 12篇 |
1972年 | 10篇 |
1971年 | 12篇 |
1969年 | 12篇 |
1968年 | 17篇 |
1967年 | 14篇 |
1966年 | 14篇 |
排序方式: 共有1525条查询结果,搜索用时 15 毫秒
1.
2.
Anton A. Semenistyy Elena A. Litvina EA Anna G. Fedotova Chukwuweike Gwam Andrey N. Mironov 《Injury》2019,50(2):515-520
Background
Intramedullary nailing is considered a “gold standard” for treatment of tibial shaft fractures. However, some types of fractures are typically considered as “difficult for nailing”. This group includes the periarticular fractures, fractures of both bones at the same level, comminuted and segmental fractures of the tibia. Fixator-assisted nailing (FAN) is an effective method treatment of these types of fractures. The main requirements for the ideal reduction device are an ease of its installation and an ability of multiplanar fracture reduction. Fixator-assisted nailing (FAN) with the use of two perpendicular to each other monolateral tubular frames perfectly meets these requirements. In this study we present this new surgical technique and the analysis of first 30 cases.Methods
A prospective analysis was conducted for 30 patients with “difficult for nailing” tibial fractures treated with fixator-assisted nailing in our institution between September 1st, 2017, and March 1st, 2018. The duration of surgery and its different stages, the time of fluoroscopy, difficulties encountered during surgery, were analyzed. Clinical and radiological methods were used to evaluated reduction quality.Results
In all 30 cases the acceptable reduction was achieved. The mean duration of the surgical procedure was 73.7?±?3?min. The mean duration of fluoroscopy 85.9?±?4.8?s. In 7 cases we faced with technical difficulties, which were successfully addressed.Conclusion
The described technique of FAN is an effective method for the treatment of “difficult for nailing” tibial fractures. Future multi-centered studies with a larger number of patients are needed to validate our results. 相似文献3.
4.
5.
Charlotte J. Harden Bernard M. Corfe J. Craig Richardson Peter W. Dettmar Jenny R. Paxman 《Nutrition Research》2009
This cross-sectional analysis evaluated the effect of age and body mass index (BMI) on Three-Factor Eating Questionnaire scores in males. Subjects (n = 60) were recruited according to BMI status. Each completed the 51-item Three-Factor Eating Questionnaire. The group was split at the median age to produce a “younger” and “older” group for statistical analysis. A 2-way between-groups analysis of variance revealed a significant main effect of BMI on disinhibition (P = .003) and hunger (P = .041) with higher levels found in overweight males compared to healthy-weight counterparts. A significant main effect of age on hunger (P = .046) demonstrated older males were less susceptible to hunger than younger males. These insights provide a better understanding of eating behavior across the male life cycle and may assist health professionals to better guide men in weight management in the light of rising overweight/obesity. 相似文献
6.
Cerebro-oculo-facial-skeletal (COFS) syndrome is a rare, autosomal recessive syndrome characterized by microcephaly, microphthalmia and/or cataracts, neurogenic arthrogryposis, and multiple congenital anomalies. A term female infant with COFS syndrome who developed infantile spasms at the age of 3 months is reported. The patient had a good response to intramuscular ACTH with disappearance of infantile spasms and resolution of the hypsarrhythmic pattern on electroencephalography succeeded by a slow, synchronous pattern. Modified hypsarrhythmia returned after ACTH therapy was discontinued. Infantile spasms have not previously been reported in association with COFS syndrome and are a potentially treatable aspect of the disease. This patient may add to the clinical spectrum of COFS syndrome or may have a variant. 相似文献
7.
8.
9.
10.
Beverly M. Genez M.D. Victor L. Zirilli M.D. Alan E. Schlesinger M.D. Elizabeth A. Harden M.D. Kim D. Murphy M.D. Randall F. Dryer M.D. 《Skeletal radiology》1988,17(4):306-309
The opinions or assertions contained herein are the private views of the authors and are not to be construed as official nor as reflecting the views of the United States Air Force 相似文献