全文获取类型
收费全文 | 1180篇 |
免费 | 97篇 |
国内免费 | 19篇 |
专业分类
儿科学 | 77篇 |
妇产科学 | 5篇 |
基础医学 | 168篇 |
口腔科学 | 63篇 |
临床医学 | 126篇 |
内科学 | 209篇 |
皮肤病学 | 47篇 |
神经病学 | 32篇 |
特种医学 | 250篇 |
外科学 | 92篇 |
综合类 | 29篇 |
预防医学 | 65篇 |
眼科学 | 13篇 |
药学 | 33篇 |
1篇 | |
肿瘤学 | 86篇 |
出版年
2023年 | 3篇 |
2022年 | 3篇 |
2021年 | 6篇 |
2020年 | 15篇 |
2019年 | 12篇 |
2018年 | 19篇 |
2017年 | 6篇 |
2016年 | 13篇 |
2015年 | 28篇 |
2014年 | 25篇 |
2013年 | 48篇 |
2012年 | 32篇 |
2011年 | 23篇 |
2010年 | 63篇 |
2009年 | 57篇 |
2008年 | 27篇 |
2007年 | 42篇 |
2006年 | 36篇 |
2005年 | 32篇 |
2004年 | 32篇 |
2003年 | 31篇 |
2002年 | 23篇 |
2001年 | 19篇 |
2000年 | 10篇 |
1999年 | 26篇 |
1998年 | 81篇 |
1997年 | 76篇 |
1996年 | 59篇 |
1995年 | 55篇 |
1994年 | 41篇 |
1993年 | 46篇 |
1992年 | 7篇 |
1991年 | 27篇 |
1990年 | 17篇 |
1989年 | 46篇 |
1988年 | 36篇 |
1987年 | 26篇 |
1986年 | 18篇 |
1985年 | 19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1296条查询结果,搜索用时 15 毫秒
1.
2.
3.
Pyomyositis: characteristics at CT and MR imaging 总被引:9,自引:0,他引:9
4.
5.
D De AJ Kanwar S Handa 《Journal of the European Academy of Dermatology and Venereology》2006,20(7):853-859
BACKGROUND: Diagnosis of atopic dermatitis (AD) depends on clinical features because no definitive diagnostic test exists. Criteria proposed by Hanifin and Rajka (Acta Derm Venereol (Stockh) 1980; Suppl 92: 44-47) were acceptable for hospital-based studies but were found not to be suitable for field studies. A UK working party formulated clinical diagnostic criteria that could be used in both hospital and epidemiological settings. Validation studies of the criteria showed widely variable results, probably due to different clinical settings and ethnicity. AIM AND OBJECTIVE: This study was undertaken to validate Hanifin and Rajka's criteria and to assess the comparative efficacy of their criteria and the UK working party's diagnostic criteria in the diagnosis of AD in a hospital setting in North India. SUBJECTS AND METHODS: This study serially included 101 patients with AD and 48 controls of paediatric age group. The study period was from July 2003 to December 2004. RESULTS: Hanifin and Rajka's criteria (sensitivity 96%, specificity 93.75%, positive predictive value 97% (PPV) and negative predictive value (NPV) 91.84%) had a statistical advantage over the UK working party's diagnostic criteria (sensitivity 86%, specificity 95.83%, PPV 97.75% and NPV 76.67%), with a P-value < 0.005. 相似文献
6.
SUMMARY Impotence is a common symptom which can cause considerable distress to both the sufferer and his partner. The use of pharmacotherapy to improve erectile function will continue to increase as safe and effective drugs are developed. However, restoring erectile function should not be the only treatment objective. It is also essential to address personal and emotional factors in the sufferer, conflicts in his relationship with his partner, and sexual problems in his partner, all of which may be instrumental in causing or maintaining the presenting impotence. We advocate a combined approach with appropriate medical treatment and sex and couple therapy 相似文献
7.
The Relative Contribution of Domains of Quality of Life to Overall Quality of Life for Different Chronic Diseases 总被引:3,自引:0,他引:3
R. Arnold A.V. Ranchor R. Sanderman G.I.J.M. Kempen J. Ormel T.P.B.M. Suurmeijer 《Quality of life research》2004,13(5):883-896
This study examined the contribution of the quality of life (QoL) domains physical, social and psychological functioning to the explanation of overall QoL. Various disorders may differentially affect QoL domains due to disease-specific factors and, consequently, the relationship between QoL domains and overall QoL may vary between diseases. We therefore studied this relationship for several diseases as well as the differential impact of these diseases on QoL. The present study had a cross-sectional design. We selected patients (aged 57 years and older) with one of the following eight chronic medical conditions: lung disorder, heart condition, hypertension, diabetes mellitus, back problems, rheumatoid arthritis, migraine, or dermatological disorders. The total group of respondents included 1457 patients and 1851 healthy subjects. Regression analyses showed that the domain of psychological functioning contributed to overall QoL for all disorders, whereas physical and social functioning contributed to overall QoL for some disorders. Differences were found between most patient groups and healthy subjects with respect to physical functioning; with respect to social and psychological functioning some groups differed from the healthy group. Explanations for the findings and implications for clinical practice are discussed. 相似文献
8.
9.
Kuntal Patel Deemesh Oudit G Ross Caroline Nicolson AJ Howcroft 《CANADIAN JOURNAL OF PLASTIC SURGERY》2005,13(4):207-208
A lump on the midface of a child can pose as a diagnostic dilemma. There is a wide variety of possible differential diagnoses, ranging from simple benign conditions such as a sebaceous cyst, dermoid cyst, lipoma, neuroma and neurofibroma, to potentially devastating conditions such as odontogenic myxoma.A case of a child in which the formulation of a definite diagnosis was clinically and histologically challenging is presented. 相似文献
10.