全文获取类型
收费全文 | 10619篇 |
免费 | 539篇 |
国内免费 | 61篇 |
专业分类
耳鼻咽喉 | 115篇 |
儿科学 | 179篇 |
妇产科学 | 225篇 |
基础医学 | 1228篇 |
口腔科学 | 282篇 |
临床医学 | 807篇 |
内科学 | 2856篇 |
皮肤病学 | 161篇 |
神经病学 | 1167篇 |
特种医学 | 318篇 |
外科学 | 1376篇 |
综合类 | 26篇 |
一般理论 | 3篇 |
预防医学 | 477篇 |
眼科学 | 223篇 |
药学 | 736篇 |
中国医学 | 14篇 |
肿瘤学 | 1026篇 |
出版年
2024年 | 9篇 |
2023年 | 64篇 |
2022年 | 150篇 |
2021年 | 271篇 |
2020年 | 169篇 |
2019年 | 216篇 |
2018年 | 243篇 |
2017年 | 222篇 |
2016年 | 245篇 |
2015年 | 275篇 |
2014年 | 361篇 |
2013年 | 550篇 |
2012年 | 783篇 |
2011年 | 807篇 |
2010年 | 430篇 |
2009年 | 416篇 |
2008年 | 725篇 |
2007年 | 782篇 |
2006年 | 760篇 |
2005年 | 721篇 |
2004年 | 708篇 |
2003年 | 631篇 |
2002年 | 571篇 |
2001年 | 82篇 |
2000年 | 74篇 |
1999年 | 64篇 |
1998年 | 113篇 |
1997年 | 77篇 |
1996年 | 80篇 |
1995年 | 83篇 |
1994年 | 74篇 |
1993年 | 65篇 |
1992年 | 52篇 |
1991年 | 38篇 |
1990年 | 39篇 |
1989年 | 32篇 |
1988年 | 21篇 |
1987年 | 21篇 |
1986年 | 21篇 |
1985年 | 22篇 |
1984年 | 19篇 |
1983年 | 18篇 |
1982年 | 17篇 |
1981年 | 24篇 |
1980年 | 11篇 |
1979年 | 7篇 |
1978年 | 9篇 |
1977年 | 7篇 |
1974年 | 6篇 |
1972年 | 5篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
131.
132.
133.
Italian Chapter of the International Society of Cardiovascular Ultrasound expert consensus document on coronary computed tomography angiography: overview and new insights
下载免费PDF全文
![点击此处可从《Echocardiography (Mount Kisco, N.Y.)》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Fabiola B. Sozzi M.D. Ph.D. Maria Maiello M.D. Francesco Pelliccia M.D. Ph.D. Vito Maurizio Parato M.D. Ciro Canetta M.D. Ketty Savino M.D. Federico Lombardi M.D. Pasquale Palmiero M.D. the Italian Chapter of the International Society of Cardiovascular Ultrasound 《Echocardiography (Mount Kisco, N.Y.)》2016,33(9):1413-1418
Coronary computed tomography angiography is a noninvasive heart imaging test currently undergoing rapid development and advancement. The high resolution of the three‐dimensional pictures of the moving heart and great vessels is performed during a coronary computed tomography to identify coronary artery disease and classify patient risk for atherosclerotic cardiovascular disease. The technique provides useful information about the coronary tree and atherosclerotic plaques beyond simple luminal narrowing and plaque type defined by calcium content. This application will improve image‐guided prevention, medical therapy, and coronary interventions. The ability to interpret coronary computed tomography images is of utmost importance as we develop personalized medical care to enable therapeutic interventions stratified on the bases of plaque characteristics. This overview provides available data and expert's recommendations in the utilization of coronary computed tomography findings. We focus on the use of coronary computed tomography to detect coronary artery disease and stratify patients at risk, illustrating the implications of this test on patient management. We describe its diagnostic power in identifying patients at higher risk to develop acute coronary syndrome and its prognostic significance. Finally, we highlight the features of the vulnerable plaques imaged by coronary computed tomography angiography. 相似文献
134.
Bruno DreraNicoletta Zoppi Marco RitelliGianluca Tadini Marina VenturiniAnita Wischmeijer Maria Anna NicolazziAlfredo Musumeci Silvana PencoLoredana Buscemi Sara CrivelliCesare Danesino Maurizio ClementiPiergiacomo Calzavara-Pinton Simona ViglioMaurizia Valli Sergio BarlatiMarina Colombi 《Journal of dermatological science》2012,65(1):77
135.
Prevalence of upper gastrointestinal endoscopic findings in the community: A systematic review of studies in unselected samples of subjects
下载免费PDF全文
![点击此处可从《Journal of gastroenterology and hepatology》网站下载免费的PDF全文](/ch/ext_images/free.gif)
136.
137.
138.
139.
140.
Stacy Loeb Shomik Sengupta Mohit Butaney Joseph N. Macaluso Stefan W. Czarniecki Rebecca Robbins R. Scott Braithwaite Lingshan Gao Nataliya Byrne Dawn Walter Aisha Langford 《European urology》2019,75(4):564-567
YouTube is a social media platform with more than 1 billion users and >600 000 videos about prostate cancer. Two small studies examined the quality of prostate cancer videos on YouTube, but did not use validated instruments, examine user interactions, or characterize the spread of misinformation. We performed the largest, most comprehensive examination of prostate cancer information on YouTube to date, including the first 150 videos on screening and treatment. We used the validated DISCERN quality criteria for consumer health information and the Patient Education Materials Assessment Tool, and compared results for user engagement. The videos in our sample had up to 1.3 million views (average 45 223) and the overall quality of information was moderate. More videos described benefits (75%) than harms (53%), and only 50% promoted shared decision-making as recommended in current guidelines. Only 54% of the videos defined medical terms and few provided summaries or references. There was a significant negative correlation between scientific quality and viewer engagement (views/month p = 0.004; thumbs up/views p = 0.015). The comments section underneath some videos contained advertising and peer-to-peer medical advice. A total of 115 videos (77%) contained potentially misinformative and/or biased content within the video or comments section, with a total reach of >6 million viewers.