全文获取类型
收费全文 | 1397494篇 |
免费 | 105893篇 |
国内免费 | 4186篇 |
专业分类
耳鼻咽喉 | 19083篇 |
儿科学 | 47176篇 |
妇产科学 | 40118篇 |
基础医学 | 194496篇 |
口腔科学 | 37176篇 |
临床医学 | 120072篇 |
内科学 | 286541篇 |
皮肤病学 | 34464篇 |
神经病学 | 111660篇 |
特种医学 | 56861篇 |
外国民族医学 | 663篇 |
外科学 | 216996篇 |
综合类 | 28448篇 |
现状与发展 | 1篇 |
一般理论 | 424篇 |
预防医学 | 104949篇 |
眼科学 | 29398篇 |
药学 | 102065篇 |
2篇 | |
中国医学 | 2445篇 |
肿瘤学 | 74535篇 |
出版年
2019年 | 12404篇 |
2018年 | 14594篇 |
2017年 | 11944篇 |
2016年 | 13256篇 |
2015年 | 15005篇 |
2014年 | 20212篇 |
2013年 | 30667篇 |
2012年 | 37822篇 |
2011年 | 40269篇 |
2010年 | 25673篇 |
2009年 | 25524篇 |
2008年 | 38667篇 |
2007年 | 41109篇 |
2006年 | 42192篇 |
2005年 | 40926篇 |
2004年 | 39955篇 |
2003年 | 39089篇 |
2002年 | 38270篇 |
2001年 | 66580篇 |
2000年 | 68548篇 |
1999年 | 58606篇 |
1998年 | 17149篇 |
1997年 | 15670篇 |
1996年 | 16055篇 |
1995年 | 16532篇 |
1994年 | 15725篇 |
1993年 | 14422篇 |
1992年 | 47409篇 |
1991年 | 46323篇 |
1990年 | 44660篇 |
1989年 | 42775篇 |
1988年 | 39168篇 |
1987年 | 38586篇 |
1986年 | 35897篇 |
1985年 | 34673篇 |
1984年 | 26365篇 |
1983年 | 22363篇 |
1982年 | 13589篇 |
1981年 | 12572篇 |
1980年 | 11195篇 |
1979年 | 22885篇 |
1978年 | 16375篇 |
1977年 | 14090篇 |
1976年 | 12904篇 |
1975年 | 13882篇 |
1974年 | 15682篇 |
1973年 | 15012篇 |
1972年 | 13726篇 |
1971年 | 12427篇 |
1970年 | 11703篇 |
排序方式: 共有10000条查询结果,搜索用时 20 毫秒
41.
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
42.
Roby Naym U. Packham Tara L. MacDermid Joy C. Carlesso Lisa C. 《Clinical rheumatology》2022,41(10):3159-3168
Clinical Rheumatology - Central sensitization (CS) is a known contributor to chronic pain in people with knee osteoarthritis (KOA) and is commonly measured by psychophysical testing or... 相似文献
43.
Die Anaesthesiologie - Als Meralgia paraesthetica (MP) bezeichnet man eine zu den neurologischen Engpasssyndromen zählende Schädigung des aus dem Plexus lumbalis entspringenden sensiblen... 相似文献
44.
Cody M. Lebeck Lee MD Ioannis A. Ziogas MD Rajiv Agarwal MD Sophoclis P. Alexopoulos MD Kristen K. Ciombor MD Lea K. Matsuoka MD Daniel B. Brown MD Cathy Eng MD 《Cancer》2022,128(12):2243-2257
The 5-year overall survival rate of a patient with unresectable metastatic colorectal cancer is poor at approximately 14%. Similarly, historical data on liver transplantation (LT) in those with colorectal liver metastases (CRLM) showed poor outcomes, with 5-year survival rates between 12% and 21%. More recently, limited data have shown improved outcomes in select patients with 5-year overall survival rates of approximately 60%. Despite these reported survival improvements, there is no significant improvement in disease-free survival. Given the uncertain benefit with this therapeutic approach and a renewed investigational interest, we aimed to conduct a contemporary systematic review on LT for CRLM. A systematic review of the literature was performed according to the preferred reporting items for systematic reviews and meta-analysis statement. English articles reporting on data regarding LT for CRLM were identified through the MEDLINE (via PubMed), Cochrane Library, and ClinicalTrials.gov databases (last search date: December 16th, 2021) by 2 researchers independently. A total of 58 studies (45 published and 13 ongoing) were included. Although early retrospective studies suggest the possibility that some carefully selected patients may benefit from LT, there is minimal prospective data on the topic and LT remains exploratory in the setting of CRLM. Additionally, several other challenges, such as the limited availability of deceased donor organs and defining appropriate selection criteria, remain when considering the implementation of LT for these patients. Further evidence from ongoing prospective trials is needed to determine if and to what extent there is a role for LT in patients with surgically unresectable CRLM. 相似文献
45.
Greer Hunter R. Miller Kristen Samay Sadaf Nellan Anandani Green Adam L. 《Journal of neuro-oncology》2022,159(2):301-308
Journal of Neuro-Oncology - The role of white blood cells (WBC) in the pediatric central nervous system (CNS) tumor microenvironment is incompletely defined. We hypothesized that the WBC profile in... 相似文献
46.
Liu Ye Teramoto Kanako Wing Vicki K. Supasiri Thanan Yin Kanhua 《Cardiovascular drugs and therapy / sponsored by the International Society of Cardiovascular Pharmacotherapy》2022,36(2):371-378
Cardiovascular Drugs and Therapy - Animal studies have suggested that angiotensin II receptor blockers (ARBs) can attenuate or reverse the progression of hypertrophic cardiomyopathy, while clinical... 相似文献
47.
Zancanella Edilson do Prado Lucila Fernandes de Carvalho Luciane Bizari Machado Júnior Almiro J. Crespo Agrício Nubiato do Prado Gilmar Fernandes 《Sleep & breathing》2022,26(1):117-123
Sleep and Breathing - There are no studies comparing tests performed at home with those carried out in the laboratory, using the same device. The only studies that have been performed... 相似文献
48.
von Heesen Maximilian Schuld Jochen Hollnder Sebastian Spiliotis Antonios E. Merscher Anna Scherber Philipp R. Igna Dorian Gbelein Gereon Glanemann Matthias 《European Surgery》2022,54(6):317-325
European Surgery - The beneficial outcomes of hepatectomy in patients with colorectal metastases have encouraged the attempts of repeated hepatectomy in patients with recurrent disease. Although... 相似文献
49.
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
50.
Malinin Oleg V. Kiryanov Nikolay A. 《European journal of clinical microbiology & infectious diseases》2022,41(7):1059-1064
European Journal of Clinical Microbiology & Infectious Diseases - Hemorrhagic fever with renal syndrome (HFRS) continues to be a cause of death in Europe. Our aim was to describe the clinical... 相似文献