全文获取类型
收费全文 | 4323篇 |
免费 | 284篇 |
国内免费 | 19篇 |
专业分类
耳鼻咽喉 | 24篇 |
儿科学 | 51篇 |
妇产科学 | 73篇 |
基础医学 | 549篇 |
口腔科学 | 335篇 |
临床医学 | 369篇 |
内科学 | 1103篇 |
皮肤病学 | 94篇 |
神经病学 | 263篇 |
特种医学 | 213篇 |
外科学 | 697篇 |
综合类 | 26篇 |
预防医学 | 294篇 |
眼科学 | 19篇 |
药学 | 198篇 |
中国医学 | 14篇 |
肿瘤学 | 304篇 |
出版年
2023年 | 32篇 |
2022年 | 45篇 |
2021年 | 137篇 |
2020年 | 95篇 |
2019年 | 109篇 |
2018年 | 143篇 |
2017年 | 104篇 |
2016年 | 110篇 |
2015年 | 143篇 |
2014年 | 171篇 |
2013年 | 216篇 |
2012年 | 338篇 |
2011年 | 294篇 |
2010年 | 194篇 |
2009年 | 200篇 |
2008年 | 287篇 |
2007年 | 246篇 |
2006年 | 241篇 |
2005年 | 255篇 |
2004年 | 249篇 |
2003年 | 212篇 |
2002年 | 196篇 |
2001年 | 64篇 |
2000年 | 58篇 |
1999年 | 52篇 |
1998年 | 35篇 |
1997年 | 25篇 |
1996年 | 18篇 |
1995年 | 17篇 |
1994年 | 13篇 |
1993年 | 11篇 |
1992年 | 30篇 |
1991年 | 38篇 |
1990年 | 26篇 |
1989年 | 30篇 |
1988年 | 22篇 |
1987年 | 18篇 |
1986年 | 21篇 |
1985年 | 13篇 |
1984年 | 14篇 |
1983年 | 8篇 |
1982年 | 8篇 |
1980年 | 15篇 |
1979年 | 7篇 |
1978年 | 6篇 |
1977年 | 8篇 |
1971年 | 6篇 |
1969年 | 4篇 |
1968年 | 4篇 |
1966年 | 4篇 |
排序方式: 共有4626条查询结果,搜索用时 218 毫秒
51.
52.
The increased prevalence of atrial fibrillation (AF) has led to specialized AF clinics (AFCs) to facilitate management of AF patients. In this article we report on outpatient AFCs in Canada, which is essential to health policies required to standardize the performance of existing AFCs and help design new AFCs. We surveyed 14 clinics in 5 provinces; 100% provided responses to a detailed questionnaire on clinic processes and care practices. Fourteen care maps were analyzed, and 5 models of care were identified; 4 were specific to AFCs. An online survey with 49 questions included items on: (1) process before visit; (2) process at visit; (3) patient education provided; (4) outreach; and (5) specific clinic information. Clinicians’ advice to patients on self-care items such as: (1) amount of alcohol and (2) caffeine intake; (3) exercise activity; (4) stressful events; (5) “when to go to the emergency department”; and (6) lifestyle changes, were evaluated to assess consistency in practice. There were moderate variances in clinicians’ advice to patients in 5 of 6 self-care items. The 1 item that had 100% consistent practice recommendation was when to go to the emergency department. A guideline-based clinical assessment checklist (CAC) was piloted to obtain feedback on its usability in real-world practice; revisions finalized the “simplified CAC” for AF care encompassing 35 data points with rationale. There was 100% positive feedback on its ability to provide baseline elements in AF care. When validated, a “simplified CAC” can facilitate a standardized clinical assessment tool in clinical practice. 相似文献
53.
Rodrigo Guellner Ghedini Julio de Oliveira Espinel Elaine Aparecida Felix Artur de Oliveira Paludo Rodrigo Mariano Arthur Rodrigo Ronconi Holand Cristiano Feijó Andrade 《Jornal brasileiro de pneumologia》2013,39(4):490-494
Every year, a large number of individuals become dependent on mechanical
ventilation because of a loss of diaphragm function. The most common causes are
cervical spinal trauma and neuromuscular diseases. We have developed an
experimental model to evaluate the performance of electrical stimulation of the
diaphragm in rabbits using single-channel electrodes implanted directly into the
muscle. Various current intensities (10, 16, 20, and 26 mA) produced tidal
volumes above the baseline value, showing that this model is effective for the
study of diaphragm performance at different levels of electrical stimulation 相似文献
54.
55.
56.
Immunomodulatory effects of bone marrow versus adipose tissue‐derived mesenchymal stromal cells on NK cells: implications in the transplantation setting 下载免费PDF全文
57.
Simultaneous lateral bone augmentation and implant placement using a particulated synthetic bone substitute around chronic peri‐implant dehiscence defects in dogs 下载免费PDF全文
58.
59.