全文获取类型
收费全文 | 4639篇 |
免费 | 308篇 |
国内免费 | 34篇 |
专业分类
耳鼻咽喉 | 18篇 |
儿科学 | 59篇 |
妇产科学 | 55篇 |
基础医学 | 238篇 |
口腔科学 | 74篇 |
临床医学 | 963篇 |
内科学 | 431篇 |
皮肤病学 | 34篇 |
神经病学 | 116篇 |
特种医学 | 53篇 |
外科学 | 444篇 |
综合类 | 824篇 |
预防医学 | 831篇 |
眼科学 | 38篇 |
药学 | 510篇 |
5篇 | |
中国医学 | 138篇 |
肿瘤学 | 150篇 |
出版年
2024年 | 5篇 |
2023年 | 99篇 |
2022年 | 182篇 |
2021年 | 217篇 |
2020年 | 196篇 |
2019年 | 270篇 |
2018年 | 265篇 |
2017年 | 160篇 |
2016年 | 127篇 |
2015年 | 136篇 |
2014年 | 480篇 |
2013年 | 438篇 |
2012年 | 346篇 |
2011年 | 404篇 |
2010年 | 293篇 |
2009年 | 205篇 |
2008年 | 194篇 |
2007年 | 179篇 |
2006年 | 161篇 |
2005年 | 99篇 |
2004年 | 78篇 |
2003年 | 71篇 |
2002年 | 41篇 |
2001年 | 28篇 |
2000年 | 43篇 |
1999年 | 28篇 |
1998年 | 20篇 |
1997年 | 15篇 |
1996年 | 10篇 |
1995年 | 4篇 |
1994年 | 8篇 |
1993年 | 6篇 |
1991年 | 2篇 |
1990年 | 4篇 |
1989年 | 3篇 |
1988年 | 2篇 |
1985年 | 10篇 |
1984年 | 12篇 |
1983年 | 10篇 |
1982年 | 8篇 |
1981年 | 17篇 |
1980年 | 14篇 |
1979年 | 12篇 |
1978年 | 15篇 |
1977年 | 12篇 |
1976年 | 14篇 |
1975年 | 11篇 |
1974年 | 12篇 |
1973年 | 11篇 |
1969年 | 1篇 |
排序方式: 共有4981条查询结果,搜索用时 218 毫秒
1.
2.
《Research in social & administrative pharmacy》2022,18(9):3694-3698
In this paper, we argue that understanding and addressing the problem of poor-quality medical products requires a more interdisciplinary approach than has been evident to date. While prospective studies based on rigorous standardized methodologies are the gold standard for measuring the prevalence of poor-quality medical products and understanding their distribution nationally and internationally, they should be complemented by social science research to unpack the complex set of social, economic, and governance factors that underlie these patterns. In the following sections, we discuss specific examples of prospective quality surveys and of social science studies, highlighting the value of cross-sector partnerships in driving high-quality, policy-relevant research in this area. 相似文献
3.
4.
5.
6.
《Enfermería clínica》2020,30(3):136-144
The implementation of Best practice guidelines is effective in improving clinical practice and reducing clinical variability. The Best Practice Guidelines of the Ontario Nurses Association have been implemented in Spain since 2012 following the principles of the Canadian programme of the Best Practice Spotlight Organisations® (BPSO®). The Nursing and Healthcare Research Unit (Investén-isciii) coordinates this programme in Spain, having been nominated BPSO Host by the Ontario Nurses Association.Four strategies were followed: translation of the Best Practice Guidelines, dissemination of same and of the programme, implementation of the Best Practice Guidelines and assessment of the results in competitively selected centres, and, finally, the development of sustainability mechanisms.Implementation is based on the theoretical Knowledge to Action model, which establishes a cycle of 6 phases: identification of the problem and training of selected BPSO®; adaptation to the local context; assessment of facilitators and barriers; adaptation and implementation of interventions; monitoring and evaluation of results, and sustainability. Each of these phases incorporate evidence-based elements that promote the effectiveness of implementation, such as the competitive selection of candidates to participate in the programme, selection by the institution of the guidelines to be implemented, leadership by nurses with a multi-professional approach, planning of the process from work structures that are non-vertical but with the support of the institution, the simultaneous use of multiple strategies, ongoing assessment and feedback of results. All of which is mentored and supported by the BPSO Host.There are currently 27 institutions in Spain of different characteristics that implement a total of 20 clinical guidelines. The scope and structure of the programme has recently been extended with regional BPSO Host coordinating centres, which has brought the number of institutions to 36 and the number of implemented clinical guidelines to 22.The programme has had a positive impact on organisations and the system, on care processes and on patient health. This is evidenced by enriched evidence-based professional practice, the promotion of collaborative networking and by improved patient health outcomes and the quality of care provided. 相似文献
7.
8.
目的 探讨思维导图在本科护生精神科实习带教中的应用效果。方法 选取2018年6月至12月31名本科护生为试验组,采用思维导图进行带教;选取2019年4月至7月32名本科护生作为对照组,采用传统的带教方法进行带教。比较两组前后评判性思维能力、对带教方法的评价,以及两组护生的理论、操作考试成绩。采用SPSS 20.0进行t检验、卡方检验和秩和检验。结果 试验组在评判性思维能力量表各项得分明显提高,由带教前的(248.09±24.45)分提高至(331.03±14.31)分,且高于对照组(P<0.05)。试验组在带教方法肯定性评价各项得分均高于对照组,差异均有统计学意义(P<0.05)。试验组带教后理论成绩为(88.35±7.71)分、操作考试成绩为(86.45±5.03)分,对照组带教后理论成绩为(74.41±10.27)分、操作考试成绩为(81.02±6.64)分,两组比较差异有统计学意义(P<0.05)。结论 运用思维导图对精神科护生进行临床带教,提高了护生学习积极性,学习由被动变主动,同时促进了护生评判性思维能力培养,值得临床推广。 相似文献
9.
Sibusiso Mdletshe Marcus Oliveira Bhekisipho Twala 《Journal of Medical Imaging and Radiation Sciences》2021,52(2):172-178
Recently, there has been a call for research-informed and research-developed practice in health sciences education. This prompts the consideration of alternative suitable research approaches that could be used to enhance health sciences education practice, including medical radiation sciences education (MRSE) practice. In this discussion paper, the authors uphold design science research (DSR) methodology as a suitable research approach to enhance MRSE practice and research. An overview of the DSR methodology and an example of a project that used DSR methodology are presented to demonstrate the application of this methodology in MRSE practice and research. The paper concludes that the use of DSR methodology could be instrumental in addressing practice related challenges while developing a theoretical contribution to the discipline. 相似文献
10.
Workplace status and risk of hypertension among hourly and salaried aluminum manufacturing employees
Jane Ellen Clougherty Ellen A. Eisen Martin D. Slade Ichiro Kawachi Mark R. Cullen 《Social science & medicine (1982)》2009
An inverse relationship between workplace status and morbidity is well established; higher job status has been associated with reduced risks of heart disease, hypertension, and injury. Most research on job status, however, has focused on salaried populations, and it remains unclear whether job status operates similarly among hourly workers. Our objectives were to examine whether hourly status itself influences risk of hypertension after adjustment for socioeconomic confounders, and to explore the role of fine-scale job grade on hypertension incidence within hourly and salaried groups. We examined data for 14,999 aluminum manufacturing employees in 11 plants across the U.S., using logistic regression with adjustment for age, sex, race/ethnicity and other individual characteristics. Propensity score restriction was used to identify comparable groups of hourly and salaried employees, reducing confounding by sociodemographic characteristics. Job grade (coded 1 through 30, within hourly and salaried groups) was examined as a more refined measure of job status. Hourly status was associated with an increased risk of hypertension, after propensity restriction and adjustment for confounders. The observed effect of hourly status was stronger among women, although the propensity-restricted cohort was disproportionately male (96%). Among salaried workers, higher job grade was not consistently associated with decreased risk; among hourly employees, however, there was a significant trend, with higher job grades more protective against hypertension. Increasing the stringency of hypertension case criteria also increased the risk of severe or persistent hypertension for hourly employees. 相似文献