全文获取类型
收费全文 | 25926篇 |
免费 | 2324篇 |
国内免费 | 49篇 |
专业分类
耳鼻咽喉 | 265篇 |
儿科学 | 818篇 |
妇产科学 | 499篇 |
基础医学 | 3601篇 |
口腔科学 | 385篇 |
临床医学 | 2828篇 |
内科学 | 5098篇 |
皮肤病学 | 358篇 |
神经病学 | 2350篇 |
特种医学 | 871篇 |
外国民族医学 | 3篇 |
外科学 | 3382篇 |
综合类 | 577篇 |
一般理论 | 18篇 |
预防医学 | 2778篇 |
眼科学 | 794篇 |
药学 | 1934篇 |
中国医学 | 26篇 |
肿瘤学 | 1714篇 |
出版年
2022年 | 133篇 |
2021年 | 374篇 |
2020年 | 287篇 |
2019年 | 410篇 |
2018年 | 436篇 |
2017年 | 358篇 |
2016年 | 388篇 |
2015年 | 484篇 |
2014年 | 683篇 |
2013年 | 994篇 |
2012年 | 1433篇 |
2011年 | 1519篇 |
2010年 | 793篇 |
2009年 | 788篇 |
2008年 | 1276篇 |
2007年 | 1460篇 |
2006年 | 1368篇 |
2005年 | 1385篇 |
2004年 | 1378篇 |
2003年 | 1204篇 |
2002年 | 1215篇 |
2001年 | 656篇 |
2000年 | 674篇 |
1999年 | 622篇 |
1998年 | 345篇 |
1997年 | 273篇 |
1996年 | 267篇 |
1995年 | 255篇 |
1994年 | 213篇 |
1993年 | 209篇 |
1992年 | 405篇 |
1991年 | 425篇 |
1990年 | 411篇 |
1989年 | 399篇 |
1988年 | 363篇 |
1987年 | 335篇 |
1986年 | 365篇 |
1985年 | 318篇 |
1984年 | 270篇 |
1983年 | 224篇 |
1982年 | 197篇 |
1981年 | 148篇 |
1980年 | 151篇 |
1979年 | 251篇 |
1978年 | 192篇 |
1977年 | 139篇 |
1975年 | 133篇 |
1974年 | 149篇 |
1973年 | 163篇 |
1972年 | 129篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
3.
4.
5.
IntroductionInterprofessional learning (IPL) is a vital aspect of training in radiation oncology professions, yet is rarely delivered to those professionals who work most closely together in clinical practice. Scenario-based learning using simulation facilities provides a unique opportunity to facilitate this learning and this project aimed to determine the impact and value of this initiative.MethodsSmall groups comprising post-graduate diploma pre-registration therapeutic radiographers, medical physics trainees and radiation oncology registrars were challenged with 4 plausible and challenging radiotherapy scenarios within an academic simulation centre. Pre- and post-event completion of the “Readiness for Interprofessional Learning Scale” measured impact and a Likert-style survey gathered feedback from participants.ResultsThe session increased participants' teamwork and collaboration skills as well as strengthening professional identities. Participants reported high levels of enjoyment related to collaborative working, communication and observing other professionals deploying their technical skills and specialist knowledge.ConclusionAlthough beneficial, simulated scenarios offering equal opportunities for engagement across the professions are challenging to plan and timetabling issues between the 3 groups present significant difficulties. The safe environment and unique opportunity for these groups to learn together was particularly well received and future oncology-specific simulated scenario sessions are planned with larger cohorts.Implications for practiceSimulated scenario training can be used to improve team working across the radiotherapy interprofessional team and may have wider use in other specialist interdisciplinary team development. 相似文献
6.
A. Cattapan K. Browne D.M. Halperin A. Di Castri P. Fullsack J. Graham J.M. Langley B.A. Taylor S.A. McNeil S.A. Halperin 《Vaccine》2019,37(2):289-295
Introduction/Hypothesis
Recruitment of participants into phase 1 vaccine clinical trials can be challenging since these vaccines have not been used in humans and there is no perceived benefit to the participant. Occasionally, as was the case with a phase 1 clinical trial of an Ebola vaccine in Halifax, Canada, during the 2014–2016 West African Ebola virus outbreak, recruitment is less difficult. In this study, we explored the motivations of participants in two phase 1 vaccine trials that were concurrently enrolling at the same centre and compared the motivations of participants in a high-profile phase 1 Ebola vaccine trial to those in a less high-profile phase 1 adjuvanted seasonal influenza vaccine study.Methods
An online survey which included participants’ prior experience with clinical trials, motivations to participate (including financial incentives), and demographic information was developed to examine the motivations of healthy participants in two phase 1 clinical vaccine trials conducted at the Canadian Center for Vaccinology in Halifax, Nova Scotia. Participants were invited via email to complete the online survey. Readability and clarity were assessed through pilot testing.Results
A total of 49 (55.7%) of 88 participants of the two studies completed the survey (22 [55%] of 40 participants from the Ebola vaccine study and 27 [56.3%] of 48 from the adjuvanted influenza vaccine study). Motivations that were most frequently ranked among participants' top three in both trials were (1) wanting to contribute to the health of others, (2) wanting to participate in something important, (3) wanting to contribute to the advancement of science, and (4) wanting to receive an incentive such as money or a tablet.Conclusions/Recommendations
Although media attention and financial compensation were more often cited by Ebola vaccine trial participants as a reason to participate, both altruistic and self-interested factors were important motivations for participants in their decision to participate in a phase 1 vaccine clinical trial. 相似文献7.
8.
9.
José A. Lorente Pablo Cardinal-Fernández Diego Muñoz Fernando Frutos-Vivar Arnaud W. Thille Carlos Jaramillo Aida Ballén-Barragán José M. Rodríguez Oscar Peñuelas Guillermo Ortiz José Blanco Bruno Valle Pinheiro Nicolás Nin María del Carmen Marin Andrés Esteban Taylor B. Thompson 《Intensive care medicine》2015,41(11):1921-1930
10.
Shannon M. Rush DPM FACFAS Lawrence A. Ford DPM FACFAS Graham A. Hamilton DPM FACFAS 《The Journal of foot and ankle surgery》2006,45(3):156-160
To evaluate morbidity associated with surgical lengthening of the gastrocnemius, medical records were reviewed retrospectively for 126 patients (mean age, 49.7 years; range, 8-78 years) who had undergone open gastrocnemius recession. Ten patients had isolated recession; 116 had gastrocnemius recession with an additional foot or ankle procedure on the ipsilateral limb. During a mean follow-up period of 19 months (range, 6-50 months), all patients were examined for any postoperative complications associated with the recession. Complications were defined as the presence of postoperative infection, wound dehiscence, nerve problems, decreased muscle strength, scar problems, or calcaneus gait (overlengthening). Uncomplicated outcome was defined as absence of all these complications and return to regular activity, both occurring during a follow-up of at least 6 months. Postsurgical complications developed in 9 (6%) of the 126 patients: 6 (4%) had scar problems, 2 (1.33%) had wound dehiscence, 2 (1.33%) had infection, 3 (2%) had nerve problems, and 1 (0.67%) developed complex regional pain syndrome. No patient complained of either a limp or gait disturbance. Neither persistent decrease in muscle strength nor calcaneus gait was seen. These data suggest that the open gastrocnemius recession procedure has low associated morbidity. 相似文献