全文获取类型
收费全文 | 724篇 |
免费 | 23篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 3篇 |
儿科学 | 61篇 |
妇产科学 | 4篇 |
基础医学 | 88篇 |
口腔科学 | 79篇 |
临床医学 | 90篇 |
内科学 | 133篇 |
皮肤病学 | 22篇 |
神经病学 | 3篇 |
特种医学 | 143篇 |
外科学 | 57篇 |
综合类 | 9篇 |
预防医学 | 18篇 |
眼科学 | 5篇 |
药学 | 16篇 |
肿瘤学 | 18篇 |
出版年
2021年 | 5篇 |
2018年 | 6篇 |
2016年 | 4篇 |
2015年 | 9篇 |
2014年 | 9篇 |
2013年 | 14篇 |
2012年 | 6篇 |
2011年 | 11篇 |
2010年 | 23篇 |
2009年 | 19篇 |
2008年 | 9篇 |
2007年 | 8篇 |
2006年 | 11篇 |
2005年 | 13篇 |
2004年 | 12篇 |
2003年 | 12篇 |
2002年 | 13篇 |
2001年 | 14篇 |
2000年 | 12篇 |
1999年 | 11篇 |
1998年 | 36篇 |
1997年 | 46篇 |
1996年 | 45篇 |
1995年 | 37篇 |
1994年 | 19篇 |
1993年 | 22篇 |
1992年 | 13篇 |
1991年 | 23篇 |
1990年 | 20篇 |
1989年 | 22篇 |
1988年 | 35篇 |
1987年 | 30篇 |
1986年 | 33篇 |
1985年 | 16篇 |
1984年 | 13篇 |
1983年 | 10篇 |
1982年 | 5篇 |
1981年 | 15篇 |
1980年 | 9篇 |
1979年 | 11篇 |
1978年 | 11篇 |
1977年 | 9篇 |
1976年 | 9篇 |
1975年 | 9篇 |
1974年 | 3篇 |
1973年 | 3篇 |
1972年 | 4篇 |
1971年 | 3篇 |
1970年 | 3篇 |
1968年 | 3篇 |
排序方式: 共有749条查询结果,搜索用时 15 毫秒
1.
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2.
3.
4.
5.
6.
7.
8.
V M Seniakovich A F Leont'ev A U Lekmanov A K Ormantaev I Zhumagel'dyev 《Vestnik khirurgii imeni I. I. Grekova》1986,137(8):80-84
An analysis of results of the conservative and operative tactics in the treatment of 89 esophago-gastric bleedings in children with extrahepatic blockade of the portal blood circulation has shown high effectiveness of the conservative therapy (78.7% of the observations). The optimal operative treatment of the bleedings is thought to be gastrotomy with suturing the veins of the submucosa plexus of the stomach and esophagus. The total positive result of using the conservative and operative tactics was noted in 93.3% of observations. 相似文献
9.
10.
Solitary bronchioloalveolar carcinoma: CT criteria 总被引:14,自引:0,他引:14
Kuhlman JE; Fishman EK; Kuhajda FP; Meziane MM; Khouri NF; Zerhouni EA; Siegelman SS 《Radiology》1988,167(2):379-382
The computed tomographic (CT) scans of 30 patients with solitary bronchioloalveolar carcinoma were reviewed. Common features at CT included the peripheral or subpleural location of a pulmonary mass (25 cases), pseudocavitation (18 cases), heterogeneous attenuation (17 cases), irregular margins forming a star pattern (22 cases), and pleural tags (21 cases). Using these CT criteria, four independent observers attempted to identify cases of bronchioloalveolar carcinoma from a larger sample of lung cancers and benign lesions by categorizing a series of test cases into four probability categories. Although the bronchioloalveolar carcinomas were correctly ranked in the two highest probability categories 75% of the time (in 45 of 60 cases), there was considerable overlap with other lung lesions, particularly with adenocarcinoma and large cell undifferentiated carcinoma. However, even though the typical features of bronchioloalveolar carcinoma are not invariable or highly specific, they are characteristic enough to suggest the diagnosis. 相似文献