全文获取类型
收费全文 | 1160篇 |
免费 | 98篇 |
国内免费 | 20篇 |
专业分类
耳鼻咽喉 | 2篇 |
儿科学 | 77篇 |
妇产科学 | 4篇 |
基础医学 | 134篇 |
口腔科学 | 63篇 |
临床医学 | 127篇 |
内科学 | 211篇 |
皮肤病学 | 46篇 |
神经病学 | 29篇 |
特种医学 | 253篇 |
外科学 | 141篇 |
综合类 | 32篇 |
预防医学 | 48篇 |
眼科学 | 13篇 |
药学 | 35篇 |
1篇 | |
肿瘤学 | 62篇 |
出版年
2023年 | 3篇 |
2022年 | 4篇 |
2021年 | 9篇 |
2020年 | 10篇 |
2019年 | 10篇 |
2018年 | 17篇 |
2017年 | 9篇 |
2016年 | 14篇 |
2015年 | 31篇 |
2014年 | 24篇 |
2013年 | 41篇 |
2012年 | 25篇 |
2011年 | 26篇 |
2010年 | 56篇 |
2009年 | 55篇 |
2008年 | 30篇 |
2007年 | 40篇 |
2006年 | 32篇 |
2005年 | 29篇 |
2004年 | 22篇 |
2003年 | 29篇 |
2002年 | 25篇 |
2001年 | 25篇 |
2000年 | 17篇 |
1999年 | 30篇 |
1998年 | 81篇 |
1997年 | 77篇 |
1996年 | 59篇 |
1995年 | 56篇 |
1994年 | 37篇 |
1993年 | 47篇 |
1992年 | 8篇 |
1991年 | 25篇 |
1990年 | 16篇 |
1989年 | 43篇 |
1988年 | 38篇 |
1987年 | 28篇 |
1986年 | 21篇 |
1985年 | 18篇 |
1984年 | 9篇 |
1983年 | 13篇 |
1982年 | 14篇 |
1981年 | 14篇 |
1980年 | 15篇 |
1979年 | 3篇 |
1978年 | 13篇 |
1977年 | 11篇 |
1976年 | 10篇 |
1975年 | 8篇 |
1954年 | 1篇 |
排序方式: 共有1278条查询结果,搜索用时 15 毫秒
71.
72.
73.
Michelle Yagnatovsky Hien Pham Andrew Rokito Laith Jazrawi 《The Physician and sportsmedicine》2017,45(2):195-198
?We retrospectively reviewed the records of 3 patients (3 knees) with a delayed type hypersensitivity reaction following Dermabond exposure after an orthopaedic knee procedure. Delayed hypersensitivity reactions are mediated by CD4+ helper T cells. The use of skin adhesives in place of traditional sutures is increasing in popularity given Dermabond’s potential benefits of decreased wound infection rate and better wound approximation. However, hypersensitivity reactions to the cyanoacrylate material in Dermabond have been described. Differentiating hypersensitivity reactions from post-operative infections is important as septic arthritis is a potentially devastating complication. This case series presents the challenge of properly diagnosing and managing hypersensitivity reactions. Consultation with allergists and dermatologists may be appropriate for ascertaining the nature of the surgical site complication and proper management. The recommended management of hypersensitivity-type reactions is a course of topical steroids and infection work up if needed. 相似文献
74.
Omar Hayani Lyall AJ Higginson Baldwin Toye Ian G Burwash 《The Canadian journal of cardiology》2009,25(4):e130-e132
Infective endocarditis caused by zoonotic microorganisms is an uncommon clinical entity. A 55-year-old man was diagnosed with endocarditis due to Capnocytophaga canimorsus, a commensal bacterium contained in the saliva of dogs, that involved the aortic and tricuspid valves and was complicated by a para-aortic valve abscess and aorta-to-right atrial fistula. The patient was successfully treated with antibiotic therapy and surgical intervention. C canimorsus endocarditis should be considered in patients with culture-negative endocarditis, particularly in immunosuppressed, asplenic or alcoholic individuals who have recently suffered a dog bite or have had close contact with dogs. 相似文献
75.
76.
After the introduction of the colposcope for the examination of children suspected of being sexually abused in Leeds, a study was undertaken to describe the findings in detail. A total of 109 consecutive prepubertal girls, mean age 70.4 months were assessed including colposcopic genital and anal examination, and peer group review of reports and photographs. Fifty nine children had signs consistent with blunt force penetrating trauma (hymenal transection/major notch, scar, or hymenal attenuation). Transections were encountered most commonly at 6 o'clock (directly posterior). In 46 the hymenal orifice was gaping with thigh abduction only and in 47 the hymenal orifice transverse diameter was greater than 4 mm on labial separation. Overall, physical findings were commonly present and in only two cases were no signs recorded. Non-specific and frequent findings included patterns of labial and introital reddening. Supportive hymenal signs including swelling, rounding of edge, thickening, distortion, and loss of symmetry were common. Labial fusion was present in 20. Urethral dilatation with labial separation was noted in 14. Physical findings including normality are consistent with abuse and even minor anogenital signs as well as negative findings should be documented. Colposcopy and photography are valuable tools in peer review, teaching, and case management. 相似文献
77.
AJ Blethyn HR Jenkins R Roberts K Verrier Jones 《Archives of disease in childhood》1995,73(6):534-535
Little objective evidence has been published to support the claim that constipation is an important contributory factor in recurrent urinary tract infection (UTI) in childhood. Using a radiological scoring system, two observers assessed faecal loading from abdominal radiographs of children with proved UTIs. There was a significant increase in the degree of faecal loading in children with UTI when compared with controls (r = 0.237). This difference was mainly accounted for by girls with recurrent (greater than five) UTIs. This study confirms an association between recurrent UTI and faecal loading. Further studies are needed to establish if there is a causal relationship and benefits from treatment. 相似文献
78.
Ganesan S Travis SP Ahmad T Jazrawi R 《Current opinion in investigational drugs (London, England : 2000)》2002,3(9):1297-1300
Tumor necrosis factor-alpha (TNF alpha) is one of several pro-inflammatory cytokines that have been implicated in the pathogenesis of Crohn's disease (CD). Treatment with antibodies to TNF alpha has been shown to reduce mucosal inflammation in the disease, promote tissue healing, achieve and maintain remission, improve the CD activity index (CDAI) and improve the quality of life. The first part of this article reviews the role of TNF alpha in CD. 相似文献
79.
Bernstein AD Jazrawi LM Elbeshbeshy B Della Valle CJ Zuckerman JD 《Bulletin of the Hospital for Joint Diseases》2002,61(1-2):49-57
The lack of literature on residency selection criteria used by orthopaedic program directors has left medical students in the position of relying on rumor and anecdotal information as to what program directors value most highly when sorting through large candidate pools. The purpose of this study was to compare the perspectives on resident selection criteria solicited from orthopaedic program directors and residency applicants. A power analysis was done to determine adequate sample size. A 26-item questionnaire was mailed to 98 residency applicants who interviewed at our program and 156 orthopaedic program directors. The program directors were also asked to elaborate on those factors that were most important in their selection process. A two-tailed Student's t-test was employed to compare the two groups. Significance was set at p < 0.05. Statistically significant differences between applicant and program director ratings were found in 12 of the 26 questionnaire items. Applicants (n = 91) ranked the following criteria as most important: a letter of recommendation from an orthopaedic surgeon (8.6 on a scale of 1 to 10, 10 being most important), USMLE I score (7.7), and rank in medical school (7.6). The most important criteria for the directors (n = 109) were: the applicant performed a rotation at the director's program (7.9), USMLE I score (7.8), and rank in medical school (7.8). This study provides the most comprehensive empirical data to date as to the factors which orthopaedic program directors consider most important during the residency selection process. To our knowledge, this is the first study in the orthopaedic literature that compares the program directors 'and residency applicants' views on resident selection criteria. Significant differences were found between applicant and program director views on resident selection criteria. 相似文献
80.
Juergen C Dinger Lothar AJ Heinemann Sabine Möhner Do Minh Thai Anita Assmann 《BMC women's health》2006,6(1):13-13