全文获取类型
收费全文 | 3597篇 |
免费 | 201篇 |
国内免费 | 16篇 |
专业分类
耳鼻咽喉 | 33篇 |
儿科学 | 203篇 |
妇产科学 | 139篇 |
基础医学 | 474篇 |
口腔科学 | 122篇 |
临床医学 | 288篇 |
内科学 | 751篇 |
皮肤病学 | 27篇 |
神经病学 | 282篇 |
特种医学 | 103篇 |
外国民族医学 | 1篇 |
外科学 | 596篇 |
综合类 | 28篇 |
一般理论 | 1篇 |
预防医学 | 187篇 |
眼科学 | 71篇 |
药学 | 253篇 |
中国医学 | 11篇 |
肿瘤学 | 244篇 |
出版年
2022年 | 26篇 |
2021年 | 63篇 |
2020年 | 36篇 |
2019年 | 54篇 |
2018年 | 57篇 |
2017年 | 44篇 |
2016年 | 69篇 |
2015年 | 75篇 |
2014年 | 87篇 |
2013年 | 121篇 |
2012年 | 173篇 |
2011年 | 203篇 |
2010年 | 100篇 |
2009年 | 100篇 |
2008年 | 181篇 |
2007年 | 208篇 |
2006年 | 176篇 |
2005年 | 184篇 |
2004年 | 191篇 |
2003年 | 168篇 |
2002年 | 152篇 |
2001年 | 128篇 |
2000年 | 125篇 |
1999年 | 107篇 |
1998年 | 44篇 |
1997年 | 42篇 |
1996年 | 39篇 |
1995年 | 30篇 |
1994年 | 29篇 |
1993年 | 23篇 |
1992年 | 75篇 |
1991年 | 56篇 |
1990年 | 57篇 |
1989年 | 47篇 |
1988年 | 38篇 |
1987年 | 32篇 |
1986年 | 35篇 |
1985年 | 30篇 |
1984年 | 36篇 |
1983年 | 24篇 |
1982年 | 15篇 |
1981年 | 16篇 |
1979年 | 26篇 |
1978年 | 31篇 |
1977年 | 21篇 |
1976年 | 19篇 |
1972年 | 22篇 |
1971年 | 18篇 |
1969年 | 17篇 |
1967年 | 17篇 |
排序方式: 共有3814条查询结果,搜索用时 0 毫秒
61.
Arnaud Scherpereel Julien Mazieres Laurent Greillier Sylvie Lantuejoul Pascal Dô Olivier Bylicki Isabelle Monnet Romain Corre Clarisse Audigier-Valette Myriam Locatelli-Sanchez Olivier Molinier Florian Guisier Thierry Urban Catherine Ligeza-Poisson David Planchard Elodie Amour Franck Morin Denis Moro-Sibilot Delphine CARMIER 《The lancet oncology》2019,20(2):239-253
62.
63.
J H Urban L D Van de Kar S A Lorens C L Bethea 《Pharmacology, biochemistry, and behavior》1986,25(2):457-462
Buspirone is an atypical anxiolytic drug that exerts its action at a receptor site other than the GABA-benzodiazepine-chloride ionophore complex. The present study examined the effect of buspirone on plasma prolactin and corticosterone levels in both control and stressed rats. In unstressed rats, buspirone produced dose-dependent increases in plasma prolactin and corticosterone levels. The minimal doses of buspirone which led to significant elevations in plasma prolactin and corticosterone levels were 1.0 and 2.0 mg/kg (IP), respectively. The effect of buspirone on both hormones was maximal 30 minutes after injection. The plasma levels of prolactin and corticosterone were significantly elevated in rats that were stressed using a conditioned fear paradigm. Buspirone produced a dose-dependent attenuation of the stress-induced increase in prolactin secretion. The stress-induced increase in corticosterone secretion was inhibited by the 0.5 mg/kg (IP) dose but not by the 2.0 mg/kg (IP) dose of buspirone, which increased corticosterone secretion both in stressed and unstressed rats. These data suggest that the effect of buspirone on plasma prolactin and corticosterone levels may be mediated by two different mechanisms of action. 相似文献
64.
Dakai Liu Yexiao Cheng Hangyu Zhou Lulan Wang Roberto Hurtado Fiel Yehudah Gruenstein Jean Jingzi Luo Vishnu Singh Eric Konadu Keither James Calvin Lui Pengcheng Gao Carl Urban Nishant Prasad Sorana Segal-Maurer Esther Wurzberger Genhong Cheng Aiping Wu William Harry Rodgers 《Emerging infectious diseases》2023,29(2):371
The Omicron variant of SARS-CoV-2 has become dominant in most countries and has raised significant global health concerns. As a global commerce center, New York, New York, USA, constantly faces the risk for multiple variant introductions of SARS-CoV-2. To elucidate the introduction and transmission of the Omicron variant in the city of New York, we created a comprehensive genomic and epidemiologic analysis of 392 Omicron virus specimens collected during November 25–December 11, 2021. We found evidence of 4 independent introductions of Omicron subclades, including the Omicron subclade BA.1.1 with defining substitution of R346K in the spike protein. The continuous genetic divergence within each Omicron subclade revealed their local community transmission and co-circulation in New York, including both household and workplace transmissions supported by epidemiologic evidence. Our study highlights the urgent need for enhanced genomic surveillance and effective response planning for better prevention and management of emerging SARS-CoV-2 variants. 相似文献
65.
66.
67.
68.
69.