全文获取类型
收费全文 | 12879篇 |
免费 | 1458篇 |
国内免费 | 247篇 |
专业分类
耳鼻咽喉 | 11篇 |
儿科学 | 447篇 |
妇产科学 | 116篇 |
基础医学 | 241篇 |
口腔科学 | 3篇 |
临床医学 | 3233篇 |
内科学 | 7414篇 |
皮肤病学 | 6篇 |
神经病学 | 90篇 |
特种医学 | 314篇 |
外科学 | 832篇 |
综合类 | 1375篇 |
现状与发展 | 2篇 |
预防医学 | 124篇 |
眼科学 | 2篇 |
药学 | 291篇 |
7篇 | |
中国医学 | 38篇 |
肿瘤学 | 38篇 |
出版年
2024年 | 38篇 |
2023年 | 275篇 |
2022年 | 354篇 |
2021年 | 455篇 |
2020年 | 704篇 |
2019年 | 680篇 |
2018年 | 623篇 |
2017年 | 435篇 |
2016年 | 381篇 |
2015年 | 462篇 |
2014年 | 826篇 |
2013年 | 686篇 |
2012年 | 492篇 |
2011年 | 592篇 |
2010年 | 436篇 |
2009年 | 487篇 |
2008年 | 515篇 |
2007年 | 571篇 |
2006年 | 525篇 |
2005年 | 458篇 |
2004年 | 394篇 |
2003年 | 379篇 |
2002年 | 312篇 |
2001年 | 371篇 |
2000年 | 347篇 |
1999年 | 294篇 |
1998年 | 310篇 |
1997年 | 299篇 |
1996年 | 234篇 |
1995年 | 254篇 |
1994年 | 190篇 |
1993年 | 196篇 |
1992年 | 199篇 |
1991年 | 141篇 |
1990年 | 87篇 |
1989年 | 68篇 |
1988年 | 76篇 |
1987年 | 78篇 |
1986年 | 60篇 |
1985年 | 70篇 |
1984年 | 57篇 |
1983年 | 48篇 |
1982年 | 50篇 |
1981年 | 23篇 |
1980年 | 19篇 |
1979年 | 14篇 |
1978年 | 7篇 |
1977年 | 4篇 |
1976年 | 6篇 |
1975年 | 2篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
Wojciech Szychta M.D. Ph.D. Gheorghe Cerin M.D. Ph.D. F.E.S.C. Bogdan Adrian Popa M.D. Armienti Felice M.D. Guido Lanzillo M.D. Ph.D. Marco Diena M.D. Grzegorz Opolski M.D. Ph.D. F.E.S.C. 《Echocardiography (Mount Kisco, N.Y.)》2015,32(6):1040-1043
Sinus venosus atrial septal defect (SV‐ASD) usually coexists with partial anomalous pulmonary vein connection (PAPVC). It is a difficult diagnosis in transthoracic echocardiography (TTE) due to eccentric position of defects. We present a rare case of atypical anatomical variation in PAPVC, which was never described before. Two right pulmonary veins drained into superior vena cava, which overrode SV‐ASD and interatrial septum, a third pulmonary vein into the right atrium. Complete diagnosis could not be set after TTE, nor transesophageal echocardiography, whereas angio‐CT was finally conclusive. This diagnostic approach allowed the surgical planning. 相似文献
4.
Improvement in Tricuspid Annular Plane Systolic Excursion with Pulmonary Hypertension Therapy in Pediatric Patients
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)
5.
6.
7.
8.
Evaluation of Adult versus Pediatric Transesophageal Echocardiography Probe Efficiency for Guiding Septal Puncture during Atrial Fibrillation Ablation
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)
9.
Assessment of Myocardial Infarct Size by Three‐Dimensional and Two‐Dimensional Speckle Tracking Echocardiography: A Comparative Study to Single Photon Emission Computed Tomography
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)
10.
《The Journal of emergency medicine》2020,58(2):e47-e50
BackgroundBupropion overdose is a commonly encountered presentation in the emergency department (ED). While the majority of cases resolve with supportive care, serious adverse effects, including seizures, cardiogenic shock, and death, can occur. Intravenous lipid emulsion (ILE) therapy has been utilized for a multitude of poisonings with varying levels of success. Although a number of cases suggest the value of ILE therapy in cases of bupropion overdose, more recent data propose that its role may be overstated.Case ReportA young woman presented to the ED with altered mental status complicated by seizure after bupropion overdose. She subsequently developed cardiogenic shock requiring vasopressor support. Bedside echocardiogram revealed a decreased left ventricular ejection fraction (LVEF). She received ILE therapy with significant improvement in both hemodynamic status and LVEF by bedside ultrasound.Why Should an Emergency Physician Be Aware of This?Although the majority of patients presenting with bupropion overdose improve with supportive care, life-threatening sequelae are possible. ILE therapy has shown promise in a variety of different overdose situations, although the evidence in cases of bupropion poisoning has been varied, and it has traditionally been utilized as a last-line rescue modality. Based on hemodynamic parameters and bedside ultrasound, this case suggests that early initiation of ILE therapy should be considered in these cases, as the potential benefits likely outweigh the theoretical risks. 相似文献