全文获取类型
收费全文 | 1128篇 |
免费 | 79篇 |
国内免费 | 11篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 44篇 |
妇产科学 | 25篇 |
基础医学 | 127篇 |
口腔科学 | 16篇 |
临床医学 | 85篇 |
内科学 | 157篇 |
皮肤病学 | 29篇 |
神经病学 | 32篇 |
特种医学 | 117篇 |
外科学 | 155篇 |
综合类 | 264篇 |
预防医学 | 54篇 |
眼科学 | 4篇 |
药学 | 50篇 |
肿瘤学 | 58篇 |
出版年
2022年 | 4篇 |
2021年 | 13篇 |
2020年 | 9篇 |
2019年 | 11篇 |
2018年 | 8篇 |
2017年 | 15篇 |
2016年 | 13篇 |
2015年 | 33篇 |
2014年 | 20篇 |
2013年 | 26篇 |
2012年 | 30篇 |
2011年 | 22篇 |
2010年 | 55篇 |
2009年 | 50篇 |
2008年 | 46篇 |
2007年 | 55篇 |
2006年 | 68篇 |
2005年 | 48篇 |
2004年 | 61篇 |
2003年 | 40篇 |
2002年 | 40篇 |
2001年 | 26篇 |
2000年 | 31篇 |
1999年 | 46篇 |
1998年 | 48篇 |
1997年 | 52篇 |
1996年 | 55篇 |
1995年 | 34篇 |
1994年 | 33篇 |
1993年 | 14篇 |
1992年 | 13篇 |
1991年 | 9篇 |
1990年 | 10篇 |
1989年 | 13篇 |
1988年 | 22篇 |
1987年 | 16篇 |
1986年 | 16篇 |
1985年 | 15篇 |
1984年 | 13篇 |
1983年 | 6篇 |
1982年 | 9篇 |
1981年 | 7篇 |
1980年 | 4篇 |
1977年 | 4篇 |
1975年 | 4篇 |
1969年 | 4篇 |
1967年 | 5篇 |
1966年 | 3篇 |
1965年 | 4篇 |
1961年 | 3篇 |
排序方式: 共有1218条查询结果,搜索用时 15 毫秒
1.
SK Raina 《Journal of postgraduate medicine》2015,61(3):213-Sep;61(3):213
2.
3.
4.
Sonoelasticity imaging of prostate cancer: in vitro results 总被引:2,自引:0,他引:2
5.
Anorectal function in the solitary rectal ulcer syndrome 总被引:8,自引:6,他引:2
Nigel R. Womack F.R.C.S. Professor Norman S. Williams M.S. John H. Holmfield Mist John F. Morrison Ph.d. 《Diseases of the colon and rectum》1987,30(5):319-323
The anorectal function of nine patients with solitary rectal ulcer syndrome (SRUS) (5 F: 4 M, median age, 27 (range, 19–41
years) and nine control subjects (5 F: 4 M, median age, 47 (35–66)P<0.01) has been investigated by a new technique that radiologically visualizes the anorectum during voiding of a semisolid
contrast medium, while simultaneously measuring intrarectal pressure and anal sphincter EMG activity. A degree of rectal prolapse
was demonstrated in eight of the SRUS patients; six of these lesions were clinically occult. Abnormal failure of the anal
sphincter to relax on voiding was present in seven of the SRUS patients. These abnormalities resulted in the SRUS patients
requiring a greater increase in intrarectal pressure (median, 100 cm water) to void than the control subjects (median, 65
cm water,P<0.01). This combination of high intrarectal pressure and rectal prolapse during straining seems to be the cause of SRUS
This work was supported by a grant from the Medical Research Council. 相似文献
6.
7.
Guntur E Luis Chee-Khuen Yong Deepak A Singh S Sengupta David SK Choon 《Journal of orthopaedic surgery and research》2007,2(1):22-10
Background
Acromioclavicular injuries are common in sports medicine. Surgical intervention is generally advocated for chronic instability of Rockwood grade III and more severe injuries. Various methods of coracoclavicular ligament reconstruction and augmentation have been described. The objective of this study is to compare the biomechanical properties of a novel palmaris-longus tendon reconstruction with those of the native AC+CC ligaments, the modified Weaver-Dunn reconstruction, the ACJ capsuloligamentous complex repair, screw and clavicle hook plate augmentation. 相似文献8.
9.
10.
The magnetic resonance (MR) images of six patients with thrombosis of a dural sinus were reviewed. The diagnosis had been verified by computed tomographic scans in three patients and arteriograms in two; in the sixth patient, only MR imaging was used to confirm the clinical syndrome. In all patients, high-intensity signal was seen from the thrombus within the affected dural sinus on all echoes. This persistent signal intensity allowed intravascular clot to be distinguished from normal causes of increased signal such as flow-related enhancement (entry phenomenon) and even-echo rephasing. MR imaging demonstrated the cause of the thrombosis in three patients: two were secondary to adjacent tumors, and one was secondary to unsuspected mastoiditis. Complications such as infarction were also demonstrated. Using MR imaging, one can easily and safely diagnose thrombosis of a dural sinus. MR should be the imaging method of choice in patients suspected of having thrombosis of a dural sinus. 相似文献