全文获取类型
收费全文 | 385篇 |
免费 | 13篇 |
国内免费 | 22篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 36篇 |
妇产科学 | 1篇 |
基础医学 | 15篇 |
口腔科学 | 9篇 |
临床医学 | 36篇 |
内科学 | 50篇 |
皮肤病学 | 8篇 |
神经病学 | 4篇 |
特种医学 | 119篇 |
外科学 | 24篇 |
综合类 | 29篇 |
预防医学 | 10篇 |
眼科学 | 27篇 |
药学 | 25篇 |
肿瘤学 | 26篇 |
出版年
2023年 | 1篇 |
2020年 | 1篇 |
2019年 | 2篇 |
2018年 | 5篇 |
2017年 | 1篇 |
2016年 | 2篇 |
2015年 | 7篇 |
2014年 | 6篇 |
2013年 | 10篇 |
2012年 | 2篇 |
2011年 | 5篇 |
2010年 | 9篇 |
2009年 | 12篇 |
2008年 | 10篇 |
2007年 | 21篇 |
2006年 | 25篇 |
2005年 | 4篇 |
2004年 | 10篇 |
2003年 | 4篇 |
2002年 | 5篇 |
2001年 | 15篇 |
2000年 | 4篇 |
1999年 | 6篇 |
1998年 | 33篇 |
1997年 | 21篇 |
1996年 | 26篇 |
1995年 | 22篇 |
1994年 | 19篇 |
1993年 | 22篇 |
1992年 | 6篇 |
1991年 | 4篇 |
1990年 | 9篇 |
1989年 | 5篇 |
1988年 | 7篇 |
1987年 | 4篇 |
1986年 | 11篇 |
1985年 | 8篇 |
1984年 | 7篇 |
1983年 | 6篇 |
1982年 | 7篇 |
1981年 | 7篇 |
1980年 | 13篇 |
1979年 | 3篇 |
1978年 | 4篇 |
1977年 | 4篇 |
1976年 | 4篇 |
1975年 | 1篇 |
排序方式: 共有420条查询结果,搜索用时 19 毫秒
61.
62.
63.
64.
65.
Radiographic mottle and patient exposure in mammography 总被引:1,自引:0,他引:1
66.
67.
Vena Tech-LGM filter: long-term results of a prospective study 总被引:12,自引:0,他引:12
Crochet DP; Stora O; Ferry D; Grossetete R; Leurent B; Brunel P; Nguyen JM 《Radiology》1993,188(3):857
68.
69.
Background:
Patellar dislocations are either due to superolateral contracture of the soft tissue or imbalance of the power between the vastus medialis (VM) and the vastus lateralis (VL). The imbalance of muscle power as an etiology of patellar dislocation has not been studied. Hence, we studied the recurrent, habitual and permanent dislocations of the patella with an electromyogram (EMG) of the vastus medialis, vastus lateralis, and pes anserinus, before and after realignment operations, to document the muscle imbalance and effectiveness of the realignment operation.Materials and Methods:
An electromyographic investigation was carried out on the vastus medialis and vastus lateralis in nine recurrent, 20 habitual, and 13 permanent dislocations of the patella, before and after their realignment operations. Pes anserinus transposition, which acted as a medial stabilizer of the patella, was also investigated with an EMG study, to understand its role on patellar stability at 0°, 30°, 60°, 90°, 120°, 150°, and full flexion of the knee. The age of the patients varied from nine to 30 (mean 15) years. There were 24 males and 18 females. Twenty-six patellar dislocations were on the right and 16 were on the left side.Results:
Electromyographic pictures reveal subnormal activity of the vastus medialis in all types of dislocations and similar activities of the vastus lateralis in permanent and habitual dislocations recorded pre operatively, which recovered to almost normal values postoperatively, at the mean one-year follow-up. Pes anserinus, which was used for medial stabilization of the patella after its realignment, maintained normal EMG activity before and after the operation.Conclusion:
This study is significant for understanding the imbalance of muscle activities in patients with an unstable patella, which can be rectified without recurrence after pes anserinus transposition. 相似文献70.
Mark DP Willcox 《Clinical & experimental optometry》2019,102(4):350-363
This article summarises research undertaken since 1993 in the Willcox laboratory at the University of New South Wales, Sydney on the tear film, its interactions with contact lenses, and the use of tears as a source of biomarkers for ocular and non‐ocular diseases. The proteome, lipidome and glycome of tears all contribute to important aspects of the tear film, including its structure, its ability to defend the ocular surface against microbes and to help heal ocular surface injuries. The tear film interacts with contact lenses in vivo and interactions between tears and lenses can affect the biocompatibility of lenses, and may be important in mediating discomfort responses during lens wear. Suggestions are made for follow‐up research. 相似文献