全文获取类型
收费全文 | 3474564篇 |
免费 | 283347篇 |
国内免费 | 13331篇 |
专业分类
耳鼻咽喉 | 47169篇 |
儿科学 | 110766篇 |
妇产科学 | 90367篇 |
基础医学 | 551770篇 |
口腔科学 | 93313篇 |
临床医学 | 319469篇 |
内科学 | 612550篇 |
皮肤病学 | 91637篇 |
神经病学 | 296819篇 |
特种医学 | 134689篇 |
外国民族医学 | 288篇 |
外科学 | 527434篇 |
综合类 | 102874篇 |
现状与发展 | 24篇 |
一般理论 | 2436篇 |
预防医学 | 299692篇 |
眼科学 | 78541篇 |
药学 | 237675篇 |
26篇 | |
中国医学 | 9372篇 |
肿瘤学 | 164331篇 |
出版年
2021年 | 55123篇 |
2020年 | 35182篇 |
2019年 | 58149篇 |
2018年 | 71556篇 |
2017年 | 54635篇 |
2016年 | 59983篇 |
2015年 | 74104篇 |
2014年 | 108333篇 |
2013年 | 173705篇 |
2012年 | 96563篇 |
2011年 | 97556篇 |
2010年 | 117768篇 |
2009年 | 121849篇 |
2008年 | 84516篇 |
2007年 | 88250篇 |
2006年 | 97985篇 |
2005年 | 93814篇 |
2004年 | 95234篇 |
2003年 | 85815篇 |
2002年 | 75530篇 |
2001年 | 103022篇 |
2000年 | 95679篇 |
1999年 | 95672篇 |
1998年 | 64789篇 |
1997年 | 62760篇 |
1996年 | 60909篇 |
1995年 | 56314篇 |
1994年 | 50565篇 |
1993年 | 47241篇 |
1992年 | 67886篇 |
1991年 | 65103篇 |
1990年 | 61743篇 |
1989年 | 60856篇 |
1988年 | 56690篇 |
1987年 | 55420篇 |
1986年 | 52853篇 |
1985年 | 52462篇 |
1984年 | 48340篇 |
1983年 | 44458篇 |
1982年 | 41794篇 |
1981年 | 39518篇 |
1980年 | 37240篇 |
1979年 | 40808篇 |
1978年 | 36358篇 |
1977年 | 32918篇 |
1976年 | 30200篇 |
1975年 | 29104篇 |
1974年 | 30632篇 |
1973年 | 29728篇 |
1972年 | 27933篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
45.
Amanda Bolderston Jackie Middleton Cynthia Palmaria Susan Cauti Susan Fawcett 《Journal of Medical Imaging and Radiation Sciences》2021,52(2):160-163
Lesbian, gay, bisexual, transgender, queer and two-spirit plus (LGBTQ2S+) people have distinct healthcare needs that may be unaddressed in many undergraduate healthcare curricula. The Radiation Therapy Program (RADTH) at the University of Alberta underwent a review of the three-year didactic curriculum using an online survey. The survey sought to ascertain if, where and how topics related to LGBTQ2S + healthcare are taught. Results indicated that out of 10 RADTH program faculty respondents, three teach related topics. The total time dedicated within the three-year curriculum was approximately three and a half hours. Other findings showed that faculty are interested in receiving more education in this area and would favour discussions about how to incorporate these themes into appropriate courses. This preliminary investigation demonstrated that there has been some initial work in this area, but there is more to be done. 相似文献
46.
47.
Kara S. Tanaka MD Veronica R. Andaya BA Steven W. Thorpe MD Kenneth R. Gundle MD James B. Hayden MD Yee-Cheen Duong MD Raffi S. Avedian MD David G. Mohler MD Lee J. Morse MD Melissa N. Zimel MD Richard J. O'Donnell MD Andrew Fang MD Robert Lor Randall MD Tina H. Tran BS Christin New BA Rosanna L. Wustrack MD other members of Study Group FORCE 《Journal of surgical oncology》2023,127(1):148-158
48.
Major depressive disorder and other neuropsychiatric disorders are often managed with long-term use of antidepressant medication. Fluoxetine, an SSRI antidepressant, is widely used as a first-line treatment for neuropsychiatric disorders. However, fluoxetine has also been shown to increase the risk of metabolic diseases such as non-alcoholic fatty liver disease. Fluoxetine has been shown to increase hepatic lipid accumulation in vivo and in vitro. In addition, fluoxetine has been shown to alter the production of prostaglandins which have also been implicated in the development of non-alcoholic fatty liver disease. The goal of this study was to assess the effect of fluoxetine exposure on the prostaglandin biosynthetic pathway and lipid accumulation in a hepatic cell line (H4-II-E-C3 cells). Fluoxetine treatment increased mRNA expression of prostaglandin biosynthetic enzymes (Ptgs1, Ptgs2, and Ptgds), PPAR gamma (Pparg), and PPAR gamma downstream targets involved in fatty acid uptake (Cd36, Fatp2, and Fatp5) as well as production of 15-deoxy-Δ12,14PGJ2 a PPAR gamma ligand. The effects of fluoxetine to induce lipid accumulation were attenuated with a PTGS1 specific inhibitor (SC-560), whereas inhibition of PTGS2 had no effect. Moreover, SC-560 attenuated 15-deoxy-Δ12,14PGJ2 production and expression of PPAR gamma downstream target genes. Taken together these results suggest that fluoxetine-induced lipid abnormalities appear to be mediated via PTGS1 and its downstream product 15d-PGJ2 and suggest a novel therapeutic target to prevent some of the adverse effects of fluoxetine treatment. 相似文献
49.
Boffa Joseph W. Tock Jamie L. Morabito Danielle M. Schmidt Norman B. 《Cognitive therapy and research》2022,46(5):1016-1029
Cognitive Therapy and Research - Despite interest in psychological inflexibility as a marker of suicide risk, no measure of psychological inflexibility specific to SI exists. The present study... 相似文献