全文获取类型
收费全文 | 47985篇 |
免费 | 3760篇 |
国内免费 | 116篇 |
专业分类
耳鼻咽喉 | 388篇 |
儿科学 | 2069篇 |
妇产科学 | 1462篇 |
基础医学 | 6290篇 |
口腔科学 | 484篇 |
临床医学 | 6563篇 |
内科学 | 8887篇 |
皮肤病学 | 761篇 |
神经病学 | 4758篇 |
特种医学 | 1025篇 |
外国民族医学 | 38篇 |
外科学 | 4645篇 |
综合类 | 500篇 |
一般理论 | 99篇 |
预防医学 | 6947篇 |
眼科学 | 666篇 |
药学 | 2592篇 |
中国医学 | 79篇 |
肿瘤学 | 3608篇 |
出版年
2023年 | 455篇 |
2022年 | 315篇 |
2021年 | 1376篇 |
2020年 | 920篇 |
2019年 | 1447篇 |
2018年 | 1686篇 |
2017年 | 1227篇 |
2016年 | 1298篇 |
2015年 | 1372篇 |
2014年 | 1915篇 |
2013年 | 2794篇 |
2012年 | 3961篇 |
2011年 | 4063篇 |
2010年 | 2158篇 |
2009年 | 1880篇 |
2008年 | 3398篇 |
2007年 | 3359篇 |
2006年 | 3089篇 |
2005年 | 3020篇 |
2004年 | 2723篇 |
2003年 | 2434篇 |
2002年 | 2282篇 |
2001年 | 296篇 |
2000年 | 179篇 |
1999年 | 270篇 |
1998年 | 373篇 |
1997年 | 260篇 |
1996年 | 222篇 |
1995年 | 289篇 |
1994年 | 251篇 |
1993年 | 215篇 |
1992年 | 127篇 |
1991年 | 134篇 |
1990年 | 117篇 |
1989年 | 97篇 |
1988年 | 106篇 |
1987年 | 74篇 |
1986年 | 97篇 |
1985年 | 103篇 |
1984年 | 113篇 |
1983年 | 97篇 |
1982年 | 117篇 |
1981年 | 152篇 |
1980年 | 99篇 |
1979年 | 63篇 |
1978年 | 55篇 |
1977年 | 58篇 |
1976年 | 57篇 |
1974年 | 54篇 |
1972年 | 51篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Chopard Romain Campia Umberto Morin Lucas Jering Karola S. Almarzooq Zaid I. Snyder Julia Elizabeth Rizzo Samantha Waxman Aaron B. Goldhaber Samuel Z. Piazza Gregory 《Journal of thrombosis and thrombolysis》2022,54(3):449-460
Journal of Thrombosis and Thrombolysis - Multidisciplinary pulmonary embolism (PE) response teams have garnered widespread adoption given the complexities of managing acute PE and provide a... 相似文献
3.
Olatunde Aishat Hosein Safiyah Paoletti Andrew Pitcairn-Ramirez Alexis Gurney Elizabeth P. 《Maternal and child health journal》2022,26(7):1559-1566
Maternal and Child Health Journal - To compare the prevalence of highly effective contraceptive use by 12 weeks postpartum among participants of Centering Pregnancy®, a model of group... 相似文献
4.
5.
6.
James I. Geller MD Joseph G. Pressey MD Malcolm A. Smith MD Rachel A. Kudgus PhD Mariana Cajaiba MD Joel M. Reid PhD David Hall PhD Donald A. Barkauskas PhD Stephen D. Voss MD Steve Y. Cho MD Stacey L. Berg MD Jeffrey S. Dome MD PhD Elizabeth Fox MD Brenda J. Weigel MD 《Cancer》2020,126(24):5303-5310
7.
8.
Virginia Hill Rice Thomas N. Templin Janet K. Harden Elizabeth S. Jenuwine Ibrahim Abdulhamid Adnan Hammad 《The Journal of adolescent health》2019,64(3):333-339
Purpose
The purpose of this study was to determine the prevalence of respiratory and/or physical fitness health problems in adolescent (ages 18–21) water pipe (WP) smokers (with or without cigarette smoking), cigarette-only smokers, and nonsmokers.Methods
A comparative four-group study design was used to recruit a non–probability sample of 153 WP smokers only, 103 cigarette smokers only, and 102 cigarette+WP smokers along with 296 nonsmokers. Our hypothesis was that youth who smoked WPs and/or cigarettes would report more respiratory problems and/or poorer physical fitness than those who did not smoke.Results
The results showed that coughs were significantly associated with smoking in all three of the smoking groups (p < .05). Cigarette-only smokers reported the most adverse outcomes with more wheezing, difficulty breathing, and less ability to exercise without shortness of breath. A dose-response analysis showed similar patterns of adverse health effects for both WP and cigarette smokers. The combined use of both products was not appreciably worse than smoking one product alone. This could be due to cigarette+WP smokers' reporting using less of the respective products when only one product was smoked.Conclusions
Even during the adolescent years, WP and/or cigarette smoking youth experienced reportable negative health effects. 相似文献9.
Elizabeth Farfán-Santos 《Medical anthropology》2019,38(6):523-536
ABSTRACTUndocumented Mexican immigrants have had to regularly confront a prohibiting health care system despite alienation, marginalization, and the threat of deportation. In this article, I explore the impact of political exclusion and alienating discourses on the health habitus of undocumented Mexican mothers through the narrative of one mother, Marta Garza, who finds herself at the painful intersection of political and medical alienation. Marta’s narrative reflects an analytical framework that centers undocumented motherhood as a space of necessary resilience and strain, wherein she is forced to advocate for her children’s health despite prohibitive barriers and dangerous potential consequences. 相似文献
10.
Angela J. Jacques-Tiura Deborah A. Ellis April Idalski Carcone Sylvie Naar Kathryn Brogan Hartlieb Elizabeth K. Towner Thomas N. Templin K.-L. Catherine Jen 《The Journal of adolescent health》2019,64(3):355-361