全文获取类型
收费全文 | 1394篇 |
免费 | 161篇 |
国内免费 | 49篇 |
专业分类
耳鼻咽喉 | 9篇 |
儿科学 | 98篇 |
妇产科学 | 21篇 |
基础医学 | 121篇 |
口腔科学 | 55篇 |
临床医学 | 154篇 |
内科学 | 428篇 |
皮肤病学 | 31篇 |
神经病学 | 32篇 |
特种医学 | 191篇 |
外科学 | 89篇 |
综合类 | 104篇 |
一般理论 | 1篇 |
预防医学 | 110篇 |
眼科学 | 9篇 |
药学 | 83篇 |
中国医学 | 3篇 |
肿瘤学 | 65篇 |
出版年
2024年 | 4篇 |
2023年 | 19篇 |
2022年 | 18篇 |
2021年 | 30篇 |
2020年 | 27篇 |
2019年 | 22篇 |
2018年 | 27篇 |
2017年 | 47篇 |
2016年 | 41篇 |
2015年 | 37篇 |
2014年 | 74篇 |
2013年 | 82篇 |
2012年 | 47篇 |
2011年 | 52篇 |
2010年 | 73篇 |
2009年 | 75篇 |
2008年 | 38篇 |
2007年 | 81篇 |
2006年 | 41篇 |
2005年 | 45篇 |
2004年 | 32篇 |
2003年 | 21篇 |
2002年 | 14篇 |
2001年 | 29篇 |
2000年 | 15篇 |
1999年 | 22篇 |
1998年 | 78篇 |
1997年 | 64篇 |
1996年 | 60篇 |
1995年 | 50篇 |
1994年 | 45篇 |
1993年 | 42篇 |
1992年 | 14篇 |
1991年 | 15篇 |
1990年 | 23篇 |
1989年 | 25篇 |
1988年 | 27篇 |
1987年 | 16篇 |
1986年 | 20篇 |
1985年 | 20篇 |
1984年 | 11篇 |
1983年 | 13篇 |
1982年 | 10篇 |
1981年 | 5篇 |
1980年 | 10篇 |
1979年 | 4篇 |
1978年 | 8篇 |
1977年 | 5篇 |
1976年 | 12篇 |
1975年 | 10篇 |
排序方式: 共有1604条查询结果,搜索用时 15 毫秒
51.
Practice patterns and clinical outcomes among non‐ST‐segment elevation acute coronary syndrome (NSTE‐ACS) patients presenting to primary and tertiary hospitals: Insights from the EARLY glycoprotein IIb/IIIa inhibition in NSTE‐ACS (EARLY‐ACS) trial
下载免费PDF全文
![点击此处可从《Catheterization and cardiovascular interventions》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Olga Toleva MD Cynthia M. Westerhout PhD Manohara P.J. Senaratne MBBS PhD Christoph Bode MD Magnus Lindroos MD PhD Vitaly A. Sulimov MD PhD Gilles Montalescot MD L. Kristin Newby MD MHS Robert P. Giugliano MD SM Frans Van de Werf MD PhD Paul W. Armstrong MD 《Catheterization and cardiovascular interventions》2014,84(6):934-942
52.
Procedural variation in the performance of primary percutaneous coronary intervention for ST‐elevation myocardial infarction: A SCAI‐based survey study of US interventional cardiologists
下载免费PDF全文
![点击此处可从《Catheterization and cardiovascular interventions》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Austin Chiang MD Hemal Gada MD MBA Susheel K. Kodali MD Michael S. Lee MD Allen Jeremias MD Duane S. Pinto MD MPH Sripal Bangalore MD MHA Robert W. Yeh MD MSc Timothy D. Henry MD Georgina Lopez‐Cruz BS MSHA Roxana Mehran MD Ajay J. Kirtane MD SM 《Catheterization and cardiovascular interventions》2014,83(5):721-726
53.
Lin Zhang Joseph JY Sung Jun Yu Siew C Ng Sunny H Wong Chi H Cho Simon SM Ng Francis KL Chan William KK Wu 《The Journal of pathology》2014,233(2):103-112
Helicobacter pylori and Epstein–Barr virus (EBV) account for roughly 80% and 10%, respectively, of gastric carcinomas worldwide. Autophagy is an evolutionarily conserved and intricately regulated cellular process that involves the sequestration of cytoplasmic proteins and organelles into double‐membrane autophagosomes that eventually fuse with lysosomes for degradation of the engulfed content. Emerging evidence indicates that xenophagy, a form of selective autophagy, plays a crucial role in the pathogenesis of H. pylori‐ and EBV‐induced gastric cancer. Xenophagy specifically recognizes intracellular H. pylori and EBV and physically targets these pathogens to the autophagosomal–lysosomal pathway for degradation. In this connection, H. pylori or EBV‐induced dysregulation of autophagy may be causally linked to gastric tumourigenesis and therefore can be exploited as therapeutic targets. This review will discuss how H. pylori and EBV infection activate autophagy and how these pathogens evade recognition and degradation by the autophagic pathway. Elucidating the molecular aspects of H. pylori‐ and EBV‐induced autophagy will help us better understand the pathogenesis of gastric cancer and promote the development of autophagy modulators as antimicrobial agents. Published by John Wiley & Sons, Ltd 相似文献
54.
55.
56.
Gardin JM Leifer ES Kitzman DW Cohen G Landzberg JS Cotts W Wolfel EE Safford RE Bess RL Fleg JL 《The American journal of cardiology》2012,110(6):862-869
Heart Failure: A Controlled Trial Investigating Outcomes of Exercise Training (HF-ACTION) was a multicenter, randomized controlled trial designed to examine the safety and efficacy of aerobic exercise training versus usual care in 2,331 patients with systolic heart failure (HF). In HF-ACTION patients with rest transthoracic echocardiographic measurements, the predictive value of 8 Doppler echocardiographic measurements-left ventricular (LV) diastolic dimension, mass, systolic (ejection fraction) and diastolic (mitral valve peak early diastolic/peak late diastolic [E/A] ratio, peak mitral valve early diastolic velocity/tissue Doppler peak early diastolic myocardial velocity [E/E'] ratio, and deceleration time) function, left atrial dimension, and mitral regurgitation severity-was examined for a primary end point of all-cause death or hospitalization and a secondary end point of cardiovascular disease death or HF hospitalization. Also compared was the prognostic value of echocardiographic variables versus peak oxygen consumption (Vo(2)). Mitral valve E/A and E/E' ratios were more powerful independent predictors of clinical end points than the LV ejection fraction but less powerful than peak Vo(2). In multivariate analyses for predicting the primary end point, adding E/A ratio to a basic demographic and clinical model increased the C-index from 0.61 to 0.62, compared with 0.64 after adding peak Vo(2). For the secondary end point, 6 echocardiographic variables, but not the LV ejection fraction or left atrial dimension, provided independent predictive power over the basic model. The addition of E/E' or E/A to the basic model increased the C-index from 0.70 to 0.72 and 0.73, respectively (all p values <0.0001). Simultaneously adding E/A ratio and peak Vo(2) to the basic model increased the C-index to 0.75 (p <0.0005). No echocardiographic variable was significantly related to the change from baseline to 3 months in exercise peak Vo(2). In conclusion, the addition of echocardiographic LV diastolic function variables improves the prognostic value of a basic demographic and clinical model for cardiovascular disease outcomes. 相似文献
57.
58.
59.
60.
Jacklyn Cho BS Brittany Toffey MD Ariel F. Silva NP Ariel Shalev MD Monika M. Safford MD Erica Phillips MD MS Ann Lee BS Faith Wiggins BS MS Elissa Kozlov PhD Emma K. Tsui PhD MPH Nicola Dell PhD Ariel C. Avgar PhD Susan J. Andreae PhD MPH Madeline R. Sterling MD MPH MS 《Health services research》2023,58(3):697-704