全文获取类型
收费全文 | 188篇 |
免费 | 10篇 |
国内免费 | 1篇 |
专业分类
耳鼻咽喉 | 1篇 |
儿科学 | 31篇 |
妇产科学 | 3篇 |
基础医学 | 7篇 |
口腔科学 | 2篇 |
临床医学 | 20篇 |
内科学 | 49篇 |
皮肤病学 | 12篇 |
神经病学 | 8篇 |
特种医学 | 2篇 |
外科学 | 36篇 |
综合类 | 11篇 |
预防医学 | 10篇 |
眼科学 | 2篇 |
药学 | 3篇 |
肿瘤学 | 2篇 |
出版年
2022年 | 4篇 |
2021年 | 4篇 |
2020年 | 5篇 |
2019年 | 3篇 |
2018年 | 5篇 |
2017年 | 3篇 |
2016年 | 6篇 |
2015年 | 9篇 |
2014年 | 7篇 |
2013年 | 11篇 |
2012年 | 13篇 |
2011年 | 11篇 |
2010年 | 15篇 |
2009年 | 7篇 |
2008年 | 25篇 |
2007年 | 18篇 |
2006年 | 8篇 |
2005年 | 4篇 |
2004年 | 7篇 |
2003年 | 4篇 |
2002年 | 7篇 |
2001年 | 2篇 |
2000年 | 5篇 |
1999年 | 2篇 |
1998年 | 1篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1984年 | 1篇 |
1982年 | 1篇 |
排序方式: 共有199条查询结果,搜索用时 15 毫秒
1.
CONTEXT AND OBJECTIVE: The safety and efficacy of drug-eluting stents reduce the need for surgical revascularization. The objective of the present study was to investigate whether paclitaxel or rapamycin-eluting stent are effective in avoiding the need for coronary-artery bypass grafting. METHODS: This was a systematic review of the literature using the methodology of the Cochrane Collaboration. The type of study considered was controlled randomized trials; the type of intervention was drug-eluting or bare-metal stents; and the main outcome investigated was coronary-artery bypass grafting. RESULTS: The ten studies included in this systematic review did not show any statistically significant difference between the drug-eluting stents and the bare-metal stents with regard to the outcome of coronary-artery bypass grafting (confidence interval: 0.31 to 1.42). CONCLUSION: The surgical revascularization rate was not reduced by the use of drug-eluting stents. 相似文献
2.
During the neurological work-up of a young patient with Klippel-Feil syndrome, the presence of a neuroschisis of the cervical spinal cord was detected. The patient presented with a transient and acute hemisensory loss and a Horner's syndrome of the opposite side. The unusual presentation and radiological findings in a patient with Klippel-Feil syndrome prompted this report. 相似文献
3.
4.
Correction to: Macular microvascular changes in children with transfusion-dependent beta-thalassemia
AttaAllah Heba Radi Mousa Suzan Omar Omar Ismail Ahmed Nagib 《Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie》2022,260(4):1431-1431
Graefe's Archive for Clinical and Experimental Ophthalmology - 相似文献
5.
6.
Thomas C. Crawford Alan Wimmer Sujoya Dey Nagib Chalfoun Darryl Wells Jean-Francois Sarrazin Michael Kuhne Melissa Frederick Krit Jongnarangsin Eric Good Aman Chugh Frank Bogun Frank Pelosi Jr. Fred Morady Hakan Oral 《Journal of interventional cardiac electrophysiology》2008,21(1):27-33
Background A better understanding of the mechanisms of recurrent atrial fibrillation (AF) after radiofrequency ablation of complex, fractionated
atrial electrograms (CFAEs) may be helpful for refining AF ablation strategies.
Methods and results Electrogram-guided ablation (EGA) was repeated in 30 consecutive patients (mean age = 59 ± 8 years) for recurrent paroxysmal
AF, 10 ± 4 months after the first ablation. During the first procedure, CFAEs were targeted without isolating all pulmonary
veins (PVs). During repeat ablation, all PVs and the superior vena cava (SVC) were mapped with a circular catheter and the
left atrium was mapped for CFAEs. EGA was performed until AF was rendered noninducible or all identified CFAEs were eliminated.
During repeat ablation, ≥1 PV tachycardia was found in 83 PVs in 29 of the 30 patients (97%). Among these 83 PVs, 63 (76%)
had not been completely isolated previously. During repeat ablation, drivers originating in a PV or PV antrum were identified
only after infusion of isoproterenol (20 μg/min) in 12 patients (40%). At 9 ± 4 months of follow-up after the repeat ablation
procedure, 21 of the 30 patients (70%) were free from recurrent AF and flutter without antiarrhythmic drugs.
Conclusions Recurrence of AF after EGA is usually due to PV tachycardias. Therefore, it may be preferable to systematically map and isolate
all PVs during the first procedure. High-dose isoproterenol may be helpful to identify AF drivers. 相似文献
7.
Audrey Dionne Anne Fournier Nagib Dahdah Dominic Abrams Paul Khairy Sylvia Abadir 《The Canadian journal of cardiology》2018,34(1):66-72
Background
QT-interval variations in response to exercise-induced increases in heart rate have been reported in children and adults in the diagnosis of long QT syndrome (LQTS). A quick standing challenge has been proposed as an alternative provocative test in adults, with no pediatric data yet available.Methods
A standing test was performed in 100 healthy children (mean age, 9.7 ± 3.1 years) after 10 minutes in a supine position with continuous electrocardiographic recording. QT intervals were measured at baseline, at maximal heart rate, at maximal QT, and at each minute of a 5-minute recovery while standing. Measurements were taken in leads II/V5 and were corrected for heart rate (QTc).Results
On standing, the heart rate increased by 29 ± 10 beats per minute (bpm). The QT interval was similar at baseline and on standing (394 ± 34 ms vs 394 ± 34 ms; P = 1.0). However, QTc increased from 426 ± 21 to 509 ± 41 ms (P < 0.001). The 95th percentile for QTc at baseline and maximal heart rate was 457 ms and 563 ms, respectively. At 1 minute of recovery, the QT interval was shorter (375 ± 31 ms) compared with baseline (394 ± 34 ms; P < 0.001) and standing (394 ± 34 ms; P < 0.001). QTc reached baseline values after 1 minute of recovery and remained stable thereafter (423 ± 23 ms at 1 minute; 426 ± 22 ms at 5 minutes; P = 1.0).Conclusions
This first characterization of QTc changes on standing in children shows substantial alterations, which are greater than those seen in adults. Two-thirds of the children would have been misclassified as having LQTS by adult criteria, indicating the need to create child-specific standards. 相似文献8.
9.
10.
Emilia Adriane SILVA Flávia Zardo TRINDADE Hélcio Nagib José Feres RESKALLA José Renato Cavalcanti de QUEIROZ 《Journal of applied oral science : revista FOB》2013,21(4):335-340