全文获取类型
| 收费全文 | 1497362篇 |
| 免费 | 109873篇 |
| 国内免费 | 13952篇 |
专业分类
| 耳鼻咽喉 | 21409篇 |
| 儿科学 | 42423篇 |
| 妇产科学 | 39992篇 |
| 基础医学 | 201874篇 |
| 口腔科学 | 42552篇 |
| 临床医学 | 132548篇 |
| 内科学 | 282132篇 |
| 皮肤病学 | 32077篇 |
| 神经病学 | 112690篇 |
| 特种医学 | 59774篇 |
| 外国民族医学 | 503篇 |
| 外科学 | 224694篇 |
| 综合类 | 66520篇 |
| 现状与发展 | 55篇 |
| 一般理论 | 446篇 |
| 预防医学 | 105944篇 |
| 眼科学 | 34919篇 |
| 药学 | 117341篇 |
| 198篇 | |
| 中国医学 | 15571篇 |
| 肿瘤学 | 87525篇 |
出版年
| 2021年 | 14952篇 |
| 2019年 | 12575篇 |
| 2018年 | 16759篇 |
| 2017年 | 14729篇 |
| 2016年 | 15412篇 |
| 2015年 | 19573篇 |
| 2014年 | 26058篇 |
| 2013年 | 35005篇 |
| 2012年 | 47106篇 |
| 2011年 | 50017篇 |
| 2010年 | 32234篇 |
| 2009年 | 29832篇 |
| 2008年 | 44299篇 |
| 2007年 | 46923篇 |
| 2006年 | 46860篇 |
| 2005年 | 44144篇 |
| 2004年 | 40814篇 |
| 2003年 | 39466篇 |
| 2002年 | 38023篇 |
| 2001年 | 66896篇 |
| 2000年 | 67853篇 |
| 1999年 | 57274篇 |
| 1998年 | 15757篇 |
| 1997年 | 14521篇 |
| 1996年 | 13783篇 |
| 1995年 | 12989篇 |
| 1994年 | 12056篇 |
| 1992年 | 43115篇 |
| 1991年 | 41552篇 |
| 1990年 | 40805篇 |
| 1989年 | 39736篇 |
| 1988年 | 37126篇 |
| 1987年 | 36565篇 |
| 1986年 | 35009篇 |
| 1985年 | 33183篇 |
| 1984年 | 24866篇 |
| 1983年 | 21083篇 |
| 1982年 | 12688篇 |
| 1979年 | 23952篇 |
| 1978年 | 17074篇 |
| 1977年 | 14846篇 |
| 1976年 | 13394篇 |
| 1975年 | 15273篇 |
| 1974年 | 18087篇 |
| 1973年 | 17572篇 |
| 1972年 | 16814篇 |
| 1971年 | 15720篇 |
| 1970年 | 14917篇 |
| 1969年 | 14347篇 |
| 1968年 | 13464篇 |
排序方式： 共有10000条查询结果，搜索用时 15 毫秒
1.
2.
3.
4.
5.
6.
7.
Julia H. Vermylen Gordon J. Wood Elaine R. Cohen Jeffrey H. Barsuk William C. McGaghie Diane B. Wayne 《Journal of pain and symptom management》2019,57(3):682-687
Introduction
Physician communication impacts patient outcomes. However, communication skills, especially around difficult conversations, remain suboptimal, and there is no clear way to determine the validity of entrustment decisions. The aims of this study were to 1) describe the development of a simulation-based mastery learning (SBML) curriculum for breaking bad news (BBN) conversation skills and 2) set a defensible minimum passing standard (MPS) to ensure uniform skill acquisition among learners.Innovation
An SBML BBN curriculum was developed for fourth-year medical students. An assessment tool was created to evaluate the acquisition of skills involved in a BBN conversation. Pilot testing was completed to confirm improvement in skill acquisition and set the MPS.Outcomes
A BBN assessment tool containing a 15-item checklist and six scaled items was developed. Students' checklist performance improved significantly at post-test compared to baseline (mean 65.33%, SD = 12.09% vs mean 88.67%, SD = 9.45%, P < 0.001). Students were also significantly more likely to have at least a score of 4 (on a five-point scale) for the six scaled questions at post-test. The MPS was set at 80%, requiring a score of 12 items on the checklist and at least 4 of 5 for each scaled item. Using the MPS, 30% of students would require additional training after post-testing.Comments
We developed a SBML curriculum with a comprehensive assessment of BBN skills and a defensible competency standard. Future efforts will expand the mastery model to larger cohorts and assess the impact of rigorous education on patient care outcomes. 相似文献8.
Adilson Cunha Ferreira Edward Araujo Júnior Wellington P. Martins João Francisco Jordão Antônio Hélio Oliani Simon E. Meagher 《The journal of maternal-fetal & neonatal medicine》2015,28(14):1706-1710
Objective: To assess the quality of images and video clips of fetal central nervous (CNS) structures obtained by ultrasound and transmitted via tele-ultrasound from Brazil to Australia.Methods: In this cross-sectional study, 15 normal singleton pregnant women between 20 and 26 weeks were selected. Fetal CNS structures were obtained by images and video clips. The exams were transmitted in real-time using a broadband internet and an inexpensive video streaming device. Four blinded examiners evaluated the quality of the exams using the Likert scale. We calculated the mean, standard deviation, mean difference, and p values were obtained from paired t tests.Results: The quality of the original video clips was slightly better than that observed by the transmitted video clips; mean difference considering all observers = 0.23 points. In 47/60 comparisons (78.3%; 95% CI?=?66.4–86.9%) the quality of the video clips were judged to be the same. In 182/240 still images (75.8%; 95% CI?=?70.0–80.8%) the scores of transmitted image were considered the same as the original.Conclusion: We demonstrated that long distance tele-ultrasound transmission of fetal CNS structures using an inexpensive video streaming device provided images of subjective good quality. 相似文献
9.
Tian-Yuan Xiong Fang-Yang Huang Qi Liu Yong Peng Yuan-Ning Xu Jia-Fu Wei 《Annals of medicine》2020,52(7):361-366
Abstract
Background
Comorbidities are commonly seen in patients with coronavirus disease 2019 (COVID-19), but the clinical implication is not yet well-delineated. We aim to characterize the prevalence and clinical implications of comorbidities in patients with COVID-19. 相似文献10.