全文获取类型
收费全文 | 641篇 |
免费 | 35篇 |
专业分类
耳鼻咽喉 | 4篇 |
儿科学 | 12篇 |
妇产科学 | 11篇 |
基础医学 | 58篇 |
口腔科学 | 9篇 |
临床医学 | 54篇 |
内科学 | 126篇 |
皮肤病学 | 5篇 |
神经病学 | 71篇 |
特种医学 | 28篇 |
外科学 | 115篇 |
综合类 | 15篇 |
预防医学 | 26篇 |
眼科学 | 60篇 |
药学 | 53篇 |
中国医学 | 5篇 |
肿瘤学 | 24篇 |
出版年
2024年 | 1篇 |
2023年 | 5篇 |
2022年 | 11篇 |
2021年 | 43篇 |
2020年 | 23篇 |
2019年 | 31篇 |
2018年 | 24篇 |
2017年 | 22篇 |
2016年 | 21篇 |
2015年 | 26篇 |
2014年 | 39篇 |
2013年 | 40篇 |
2012年 | 61篇 |
2011年 | 59篇 |
2010年 | 34篇 |
2009年 | 25篇 |
2008年 | 35篇 |
2007年 | 28篇 |
2006年 | 21篇 |
2005年 | 18篇 |
2004年 | 18篇 |
2003年 | 22篇 |
2002年 | 18篇 |
2001年 | 5篇 |
2000年 | 8篇 |
1999年 | 7篇 |
1998年 | 7篇 |
1997年 | 3篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 2篇 |
1988年 | 2篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1976年 | 1篇 |
1972年 | 1篇 |
1969年 | 1篇 |
1958年 | 1篇 |
1941年 | 1篇 |
1939年 | 1篇 |
1930年 | 1篇 |
排序方式: 共有676条查询结果,搜索用时 46 毫秒
611.
Ramana Appireddy Charlotte Zerna Bijoy K Menon Mayank Goyal 《Current atherosclerosis reports》2016,18(7):40
After many years of clinical research, endovascular thrombectomy has been conclusively proven to be an effective treatment in acute ischemic stroke. The evidence is compelling; however, it is generated in high volume stroke centers with stroke expertise. Challenges remain ahead on translating and implementing this evidence in routine clinical care across the world. The current evidence has opened up avenues for further research and innovation in this field. In this review, we will discuss the evolution of evidence on endovascular thrombectomy followed by a discussion of challenges and future prospects in this exciting field of stroke care. 相似文献
612.
613.
Angiographic predictors of 2‐year stent thrombosis in patients receiving drug‐eluting stents: Insights from the ADAPT‐DES study
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)
Philippe Généreux MD Björn Redfors MD PhD Bernhard Witzenbichler MD Akiko Maehara MD Mayank Yadav MD Giora Weisz MD Dominic P. Francese MPH Rupa Parvataneni MS Sorin J. Brener MD Roxana Mehran MD Ajay J. Kirtane MD SM Gregg W. Stone MD 《Catheterization and cardiovascular interventions》2017,89(1):26-35
614.
Solving the health care consumers’ (producers’) utility maximization (cost minimization) problem could entail the substitution
of alternative care providers (factor inputs) when the relative out-of-pocket costs (factor prices) change, ceteris paribus.
The conceptual advancement in this contribution is illustrated with an earlier paper (P. Deb and A. Holmes, Health Economics 7(4):347–362, 1998) on the economic relationship of physicians (M.D.s) and ‘other providers’ (Ph.D.s, other) in the US outpatient
demand for mental health care services. Many aspects of our conceptual progress are insightful. Foremost, our conclusion on
whether M.D. and non-M.D. providers of outpatient mental health care are economic complements or substitutes depends on the
alternative measure of the substitution elasticity used. Second, when correctly measured the expenditure-minimizing substitutions
among mental health providers can be useful policy decision guides for consumers covered under traditional indemnity insurance
with deductibles or managed care plans with user co-payments. Finally, our conceptual clarification should motivate future
investigators of health services demand (or use) and cost models to consider a wider conceptual foundation for assessing the
structure and implications of provider relationships.
相似文献
Albert A. OkunadeEmail: |
615.
Mayank Kaushal Lezlie Y. Espaa Andrew S. Nencka Yang Wang Lindsay D. Nelson Michael A. McCrea Timothy B. Meier 《Human brain mapping》2019,40(4):1211-1220
There has been a recent call for longitudinal imaging studies to better characterize the time course of physiological recovery following sport‐related concussion (SRC) and its relationship with clinical recovery. To address this, we evaluated changes to resting‐state functional connectivity (rs‐FC) of the whole‐brain network following SRC and explored associations between rs‐FC and measures of clinical outcome. High school and collegiate football athletes were enrolled during preseason. Athletes that suffered SRC (N = 62) were assessed across the acute (within 48 hr) and sub‐acute (days 8, 15, and 45) phases. Matched football athletes without concussion served as controls (N = 60) and participated in similar visits. Multi‐band resting‐state fMRI was used to assess whole‐brain rs‐FC at each visit using network‐based statistic and average nodal strength from regions of interest defined using a common whole‐brain parcellation. Concussed athletes had elevated symptoms, psychological distress, and oculomotor, balance, and memory deficits at 48 hr postconcussion relative to controls, with diminished yet significant elevations in symptoms and psychological distress at 8 days. Both rs‐FC analyses showed that concussed athletes had a global increase in connectivity at 8 days postconcussion relative to controls, with no differences at the 48‐hr, 15‐day, or 45‐day visits. Further analysis revealed the group effect at the 8‐day visit was driven by the large minority of concussed athletes still symptomatic at their visit; asymptomatic concussed athletes did not differ from controls. Findings from this large‐scale, prospective study suggest whole‐brain rs‐FC alterations following SRC are delayed in onset but associated with the presence of self‐reported symptoms. 相似文献
616.
Nguyen Ha Son Doan Ninh B. Gelsomino Michael Shabani Saman Awad Ahmed J. Kaushal Mayank Mortazavi Martin M. 《Journal of neuro-oncology》2019,141(1):213-221
Journal of Neuro-Oncology - The impact of multiple primary tumors, in the setting of malignant glioma (MG), has not been heavily explored. We extracted demographics and clinical data from the... 相似文献
617.
Bruce C V Campbell Wim H van Zwam Mayank Goyal Bijoy K Menon Diederik W J Dippel Andrew M Demchuk Serge Bracard Philip White Antoni Dávalos Charles B L M Majoie Aad van der Lugt Gary A Ford Natalia Pérez de la Ossa Michael Kelly Romain Bourcier Geoffrey A Donnan Yvo B W E M Roos Oh Young Bang James Cunningham 《Lancet neurology》2018,17(1):47-53
618.
619.
Spontaneous hemopneumothorax is rare, occurs in young adolescents, and can be life threatening secondary to massive bleeding. An adolescent with spontaneous hemopneumothorax and shock managed by tube thorascostomy is described here. We compared our case with published data of spontaneous hemopneumothorax in the pediatric age group. Spontaneous hemopneumothorax involves the accumulation of air and blood in the pleural space in the absence of trauma or other obvious causes. Spontaneous hemopneumothorax is usually seen in adolescents, more common in males than females. The common clinical features of spontaneous hemopneumothorax include dyspnoea and chest pain, and 30% present with hypovolemic shock. The bleeding can result from a torn adhesion between the parietal and visceral pleurae, from a rupture of vascularized bullae, or from torn congenital aberrant vessels. Over the last 6 decades, the treatment has progressed from the thoracotomy to minimally invasive techniques such as video assisted thoracoscopic surgery, with great reduction in mortality and recurrence rates. Although a rare entity, diagnosis of spontaneous hemopneumothorax must be considered in young adolescents presenting with spontaneous onset of chest pain and dyspnoea with radiograph findings of hydropneumothorax and/or signs of shock. 相似文献
620.