全文获取类型
收费全文 | 3355篇 |
免费 | 226篇 |
国内免费 | 8篇 |
专业分类
耳鼻咽喉 | 55篇 |
儿科学 | 137篇 |
妇产科学 | 75篇 |
基础医学 | 490篇 |
口腔科学 | 41篇 |
临床医学 | 336篇 |
内科学 | 472篇 |
皮肤病学 | 71篇 |
神经病学 | 813篇 |
特种医学 | 150篇 |
外科学 | 365篇 |
综合类 | 47篇 |
一般理论 | 2篇 |
预防医学 | 253篇 |
眼科学 | 31篇 |
药学 | 148篇 |
中国医学 | 4篇 |
肿瘤学 | 99篇 |
出版年
2022年 | 14篇 |
2021年 | 53篇 |
2020年 | 35篇 |
2019年 | 27篇 |
2018年 | 34篇 |
2017年 | 38篇 |
2016年 | 44篇 |
2015年 | 78篇 |
2014年 | 113篇 |
2013年 | 130篇 |
2012年 | 190篇 |
2011年 | 179篇 |
2010年 | 122篇 |
2009年 | 114篇 |
2008年 | 165篇 |
2007年 | 163篇 |
2006年 | 187篇 |
2005年 | 135篇 |
2004年 | 156篇 |
2003年 | 126篇 |
2002年 | 116篇 |
2001年 | 138篇 |
2000年 | 101篇 |
1999年 | 105篇 |
1998年 | 54篇 |
1997年 | 66篇 |
1996年 | 43篇 |
1995年 | 47篇 |
1994年 | 39篇 |
1993年 | 35篇 |
1992年 | 58篇 |
1991年 | 61篇 |
1990年 | 61篇 |
1989年 | 54篇 |
1988年 | 35篇 |
1987年 | 45篇 |
1986年 | 40篇 |
1985年 | 39篇 |
1984年 | 33篇 |
1983年 | 31篇 |
1982年 | 15篇 |
1981年 | 14篇 |
1979年 | 15篇 |
1978年 | 15篇 |
1976年 | 13篇 |
1972年 | 12篇 |
1971年 | 15篇 |
1970年 | 15篇 |
1952年 | 16篇 |
1951年 | 23篇 |
排序方式: 共有3589条查询结果,搜索用时 0 毫秒
41.
Hauser CJ Fekete Z Livingston DH Adams J Garced M Deitch EA 《The Journal of trauma》2000,48(4):592-7; discussion 597-8
42.
We investigated the effect of amantadine on cognitive processing in patients with multiple sclerosis (MS) and fatigue with objective electrophysiological measures. Behavioral methods (Reaction Time, RT) and two different Event Related Potential (ERP) components measuring i) stimulus selection (Selection Negativity, SN) and ii) response selection (Lateralized Readiness Potential, LRP) were employed. Twenty-four patients with clinical definite MS (10 relapsing remitting and 14 secondary progressive) and confirmed fatigue in the past three months (Fatigue Severity Scale (FSS) > 4) were included. Patients were randomized in a double-blind, placebo-controlled cross-over design. We found a difference between the two treatments for ERP measures to stimuli with relevant colour starting at about 200 ms. This negativity had a higher amplitude during amantadine treatment regardless of treatment order. The RT did not differ significantly between the treated and untreated groups. Additional analysis indicated that patients with a disease duration of less than 7 years had a significant test position (practice effect), but no treatment effect, while patients with a longer MS duration showed no practice effect, but rather an improved reaction speed and increased ERP amplitude effects when treated with amantadine. The present findings suggest that amantadine exerts beneficial effects on early cognitive processes in patients with MS, but appears to be limited to subjects with a longer duration of the disease. 相似文献
43.
vom Saal FS Akingbemi BT Belcher SM Birnbaum LS Crain DA Eriksen M Farabollini F Guillette LJ Hauser R Heindel JJ Ho SM Hunt PA Iguchi T Jobling S Kanno J Keri RA Knudsen KE Laufer H LeBlanc GA Marcus M McLachlan JA Myers JP Nadal A Newbold RR Olea N Prins GS Richter CA Rubin BS Sonnenschein C Soto AM Talsness CE Vandenbergh JG Vandenberg LN Walser-Kuntz DR Watson CS Welshons WV Wetherill Y Zoeller RT 《Reproductive toxicology (Elmsford, N.Y.)》2007,24(2):131-138
44.
Psychologic predictors of compliance in children with recent onset of diabetes mellitus 总被引:2,自引:0,他引:2
A M Jacobson S T Hauser J I Wolfsdorf J Houlihan J E Milley R D Herskowitz D Wertlieb E Watt 《The Journal of pediatrics》1987,110(5):805-811
A group of 57 children with recent onset of insulin-dependent diabetes mellitus was studied over 18 months. Compliance with the prescribed diabetic treatment deteriorated over this period. Adolescents (aged 13 to 15 years) were less compliant than preadolescents (aged 9 to 12 years). Initial patient reports of self-esteem, perceived competence, social functioning, behavioral symptoms, and their adjustment to diabetes predicted subsequent compliance behaviors. The findings highlight the linkage of child personality and adjustment with self-care of diabetes, and suggest that psychosocial assessment soon after diabetes is diagnosed may help identify patients at risk for later compliance problems. 相似文献
45.
Edelstein A Yavetz H Kleiman SE Botchan A Hauser R Paz G Yogev L 《Fertility and sterility》2008,90(1):205-208
A similarity was found between the percentage of thawed, DNA-damaged spermatozoa in cancer patients and that in candidates to become sperm bank donors who had low sperm cryofreezability. Both groups were significantly different from the sperm bank donor group. It is suggested that the higher rate of DNA fragmentation in sperm from cancer patients compared with sperm bank donors is apparently a result of selecting donors by the level of sperm cryofreezability (i.e., high), rather than a direct effect of an existing malignancy. 相似文献
46.
47.
48.
49.
50.