全文获取类型
收费全文 | 774篇 |
免费 | 32篇 |
国内免费 | 22篇 |
专业分类
耳鼻咽喉 | 29篇 |
儿科学 | 36篇 |
妇产科学 | 3篇 |
基础医学 | 74篇 |
口腔科学 | 10篇 |
临床医学 | 94篇 |
内科学 | 249篇 |
皮肤病学 | 1篇 |
神经病学 | 27篇 |
特种医学 | 175篇 |
外科学 | 26篇 |
综合类 | 13篇 |
预防医学 | 21篇 |
眼科学 | 4篇 |
药学 | 51篇 |
肿瘤学 | 15篇 |
出版年
2021年 | 3篇 |
2018年 | 5篇 |
2016年 | 5篇 |
2015年 | 10篇 |
2014年 | 9篇 |
2013年 | 18篇 |
2012年 | 7篇 |
2011年 | 15篇 |
2010年 | 18篇 |
2009年 | 11篇 |
2008年 | 23篇 |
2007年 | 40篇 |
2006年 | 25篇 |
2005年 | 28篇 |
2004年 | 24篇 |
2003年 | 18篇 |
2002年 | 17篇 |
2001年 | 21篇 |
2000年 | 14篇 |
1999年 | 11篇 |
1998年 | 34篇 |
1997年 | 27篇 |
1996年 | 39篇 |
1995年 | 22篇 |
1994年 | 18篇 |
1993年 | 26篇 |
1992年 | 10篇 |
1991年 | 5篇 |
1990年 | 17篇 |
1989年 | 23篇 |
1988年 | 26篇 |
1987年 | 27篇 |
1986年 | 12篇 |
1985年 | 23篇 |
1984年 | 9篇 |
1983年 | 13篇 |
1982年 | 24篇 |
1981年 | 18篇 |
1980年 | 13篇 |
1979年 | 9篇 |
1978年 | 5篇 |
1977年 | 15篇 |
1976年 | 24篇 |
1975年 | 13篇 |
1973年 | 8篇 |
1972年 | 4篇 |
1971年 | 3篇 |
1967年 | 9篇 |
1966年 | 4篇 |
1939年 | 2篇 |
排序方式: 共有828条查询结果,搜索用时 9 毫秒
131.
132.
133.
134.
135.
RH Sterns 《American journal of kidney diseases》1999,33(1):161-3; discussion 163-5
136.
Ledipasvir/sofosbuvir for treatment of hepatitis C virus in sofosbuvir‐experienced,NS5A treatment‐naïve patients: Findings from two randomized trials 下载免费PDF全文
137.
138.
Mugavero MJ May M Ribaudo HJ Gulick RM Riddler SA Haubrich R Napravnik S Abgrall S Phillips A Harris R Gill MJ de Wolf F Hogg R Günthard HF Chêne G D'Arminio Monforte A Guest JL Smith C Murillas J Berenguer J Wyen C Domingo P Kitahata MM Sterne JA Saag MS;AIDS Clinical Trial Group DACS Team;AIDS Clinical Trial Group Study Team;AIDS Clinical Trial Group Study team;Antiretroviral Cohort Collaboration 《Journal of acquired immune deficiency syndromes (1999)》2011,58(3):253-260
139.
140.
Y Bersudsky J Applebaum Y Gaiduk L Sharony A Mishory A Podberezsky G Agam RH Belmaker 《Bipolar disorders》2010,12(4):376-382
Bersudsky Y, Applebaum J, Gaiduk Y, Sharony L, Mishory A, Podberezsky A, Agam G, Belmaker RH. Valnoctamide as a valproate substitute with low teratogenic potential in mania: a double‐blind, controlled, add‐on clinical trial.Bipolar Disord 2010: 12: 376–382. © 2010 The Authors. Journal compilation © 2010 John Wiley & Sons A/S. Objectives: Valproic acid’s well‐known teratogenicity limits its use in women of childbearing age. Valnoctamide is an analog of valproate that does not undergo biotransformation to the corresponding free acid. In mice, valnoctamide has been shown to be distinctly less teratogenic than valproate. Valnoctamide is an anticonvulsant, and we hypothesized that valnoctamide is antimanic. Methods: We performed a double‐blind, five‐week, add‐on, controlled trial of valnoctamide in mania. Patients were treated with risperidone at doses of the physician’s discretion. Valnoctamide or placebo was begun at doses of 600 mg/day and increased to 1200 mg after four days. Weekly ratings by a psychiatrist blind to the study drug were conducted using the Brief Psychiatric Rating Scale (BPRS), the Young Mania Rating Scale (YMRS), and the Clinical Global Impression (CGI). Results: Fifteen valnoctamide patients and 17 placebo patients completed at least one post‐baseline week and were included in data analysis. In all efficacy measures valnoctamide was more effective than placebo as an add‐on to risperidone, using two‐way analysis of variance (ANOVA) with time as the within‐subject factor. Two‐way ANOVA showed a significant effect of time (p < 0.001) and significant interaction between treatment and time (YMRS: p = 0.012; BPRS: p = 0.007; CGI: p = 0.003). Differences between valnoctamide and placebo were significant from week 3 to week 5. Conclusion: Valnoctamide could be an important valproate substitute for women of childbearing age with bipolar disorder who may become pregnant. 相似文献