全文获取类型
收费全文 | 22954篇 |
免费 | 1946篇 |
国内免费 | 270篇 |
专业分类
耳鼻咽喉 | 711篇 |
儿科学 | 476篇 |
妇产科学 | 158篇 |
基础医学 | 2999篇 |
口腔科学 | 638篇 |
临床医学 | 3338篇 |
内科学 | 1026篇 |
皮肤病学 | 235篇 |
神经病学 | 1269篇 |
特种医学 | 283篇 |
外科学 | 760篇 |
综合类 | 4703篇 |
现状与发展 | 3篇 |
一般理论 | 3篇 |
预防医学 | 6325篇 |
眼科学 | 232篇 |
药学 | 1257篇 |
133篇 | |
中国医学 | 439篇 |
肿瘤学 | 182篇 |
出版年
2024年 | 75篇 |
2023年 | 410篇 |
2022年 | 706篇 |
2021年 | 931篇 |
2020年 | 949篇 |
2019年 | 764篇 |
2018年 | 689篇 |
2017年 | 821篇 |
2016年 | 991篇 |
2015年 | 794篇 |
2014年 | 1683篇 |
2013年 | 1942篇 |
2012年 | 1746篇 |
2011年 | 1718篇 |
2010年 | 1382篇 |
2009年 | 1278篇 |
2008年 | 1379篇 |
2007年 | 1447篇 |
2006年 | 1088篇 |
2005年 | 752篇 |
2004年 | 607篇 |
2003年 | 437篇 |
2002年 | 372篇 |
2001年 | 306篇 |
2000年 | 299篇 |
1999年 | 213篇 |
1998年 | 187篇 |
1997年 | 150篇 |
1996年 | 124篇 |
1995年 | 124篇 |
1994年 | 104篇 |
1993年 | 100篇 |
1992年 | 83篇 |
1991年 | 75篇 |
1990年 | 73篇 |
1989年 | 56篇 |
1988年 | 66篇 |
1987年 | 51篇 |
1986年 | 29篇 |
1985年 | 36篇 |
1984年 | 18篇 |
1983年 | 23篇 |
1982年 | 13篇 |
1981年 | 11篇 |
1980年 | 14篇 |
1979年 | 9篇 |
1978年 | 9篇 |
1977年 | 8篇 |
1976年 | 10篇 |
1975年 | 5篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
Discrimination towards individuals with disabilities is problematic within nursing. There have been calls to increase diversity in nursing and this includes embracing nurses with disabilities. Increasing diversity in nursing requires increasing diversity among nursing students; in this way, nurse educators are gatekeepers to the profession. Clinical education is a crucial element of nursing education, yet there have been very few studies related to the clinical education of nursing students with disabilities. There have been no studies of attitudes of acute care nurse preceptors toward students with disabilities in the United States. This gap is important as the majority of clinical experiences occur in the acute care environment. Utilizing a focused ethnography, semi-structured interviews were conducted with 20 acute care nurses with at least two years’ experience precepting students. While positive feelings about nursing students with disabilities were shared, thoughts and behavioral intentions remained negative. Six themes emerged: safety, barriers, otherness, communicating to meet needs, disclosure, and student versus colleague. Attitudinal barriers are the primary barriers faced by individuals with disabilities in becoming and practicing as nurses. Nurses in practice and education must embrace more inclusive attitudes towards individuals with disabilities. 相似文献
3.
4.
Inference of biogeographic origin is an important factor in clinical, population and forensic genetics. The information provided by AIMs (Ancestry Informative Markers) can allow the differentiation of major continental population groups, and several AIM panels have been developed for this purpose. However, from these major population groups, Eurasia covers a wide area between two continents that is difficult to differentiate genetically. These populations display a gradual genetic cline from West Europe to South Asia in terms of allele frequency distribution. Although differences have been reported between Europe and South Asia, Middle East populations continue to be a target of further investigations due to the lack of genetic variability, therefore hampering their genetic differentiation from neighboring populations. In the present study, a custom-built ancestry panel was developed to analyze North African and Middle Eastern populations, designated the ‘NAME’ panel. The NAME panel contains 111 SNPs that have patterns of allele frequency differentiation that can distinguish individuals originating in North Africa and the Middle East when combined with a previous set of 126 Global AIM-SNPs. 相似文献
5.
《Vaccine》2020,38(45):7118-7128
IntroductionToward the Global Vaccine Action Plan 2020 goal, almost 90% of countries have established a National Immunization Technical Advisory Group (NITAG). However, little is known about NITAG's contributions to governance.MethodsIn 2017–2018, a two-step, qualitative retrospective study was conducted. Jordan (JO), Argentina (AR), and South Africa (SA) were selected owing to government-financed NITAGs from middle-income countries (MICs), geographic diversity, and a vaccine introduction with NITAG support. Country case studies were developed, collecting data through desk review and face-to-face key informant interviews (KIIs) from Ministry of Health (MoH) and NITAG. Case studies were analyzed together, to assess governance applying the European Observatory on Health Systems and Policies framework focusing on transparency, accountability, participation, integrity, and policy capacity (TAPIC).ResultsDocument review and 53 KII (22 AR, 20 SA, 11 JO) showed NITAGs played a pivotal role as advisors promoting a culture of evidence-informed policies. NITAGs strengthened governance, although practices varied among countries. Meetings were conducted behind-closed-doors, participation restricted to members, only in one country agendas, and recommendations were public (AR). To increase participation, policy capacity, and transparency, countries considered adding experts in communications, advocacy, and economics. AR and SA contemplated including community members. NITAGs functioned autonomously from the government, with no established internal or external monitoring or supervision. NITAG meeting minutes allowed the review of integrity, adherence to terms of reference, standard operating procedures, and conflict of interest (CoI). For the most part, NITAGs abided by their mandates. Significant issues were related to the level of MoH support and oversight of CoI declaration and documentation.ConclusionsSystematically implementing governance approaches could improve processes, better tailor policies, and implementation. The long-term survival and resilience of NITAGs in these countries showed they play a significant role in strengthening governance. Lessons learned could be useful to those promoting country-driven evidence-informed decision-making. 相似文献
6.
7.
《The surgeon》2022,20(1):16-40
Surgical Innovations are central to surgical progress, and have led to exponential growth in various fields of Surgery. Surgical Innovations in Lower and Middle Income Countries are the result of creativity of frontline health workers in search of simple, safe and ethical solutions for their unique challenges. The key lies in: ‘simplifying the idea/technique/device’ to find patients' needs-driven low-cost innovative surgical solutions; which can be used on a wider scale to achieve health equity for underserved populations. Local surgeons understand the difficulties and nuances of various problems and can provide local-evidence-based customized solutions for their patients' health problems. We developed a Surgical Innovation Ecosystem allowing us to see difficulties as opportunities, learn from everyone and conduct research on what is ‘important’ rather than what is ‘interesting’. Barriers to Surgical Innovations in Lower and Middle Income Countries are well known; however, a roadmap to overcome these barriers is now available. The right balance has to be found between encouraging creativity and innovation while maintaining ethical awareness and responsibility to patients. Introduction and adoption of Surgical Innovations are governed by evidence-based principles and have to undergo a rigorous and scientific evaluation. Science of Surgical Innovations has finally come of age and is getting its due recognition and the pioneering innovators are receiving the much needed appreciation and support. 相似文献
8.
教育测量与评价对实现教育目标具有重要作用。科学的教育评价既促进学生学习,又为教育决策提供依据,以实现持续质量改进。"健康中国2030"的整体目标、医学科学的发展及人民的健康需求,对新时代护理人才的培养提出了更高、更具体的要求。高等护理院校应以国家和社会对护理人才需求、院校培养目标为导向,以测量理论为基础,制定完善的学业评定标准,科学地开展毕业考核,保证人才"出口"质量。毕业考核作为终结性评价,测试内容在评价质量中起核心作用,应符合国家护理学专业培养标准,并与院校培养目标、课程目标契合。院校应关注护理本科生毕业考核质量,在保障测试信度的同时,做到实施公平、评价适当、标准一致,以确保测试的效度。教育管理部门及各院校应优化评价体系,加强对护理本科生毕业管理,在充分开展系统调查与分析的基础上,基于胜任力导向和结果导向,建立综合性评价体系,在教学过程中进行全方位反馈评价管理。文章结合国内外护理学专业本科生毕业考核的现状,从考核目的、内容、方式、评价主体、质量控制等方面进行综述与分析,为我国加强护理学本科教育,完善护理学专业本科生毕业评价体系建设提供借鉴。 相似文献
9.
10.
【摘要】 目的 了解社区中老年人群的血脂、血糖现状水平,探讨其与性别和年龄的关系,为本地区心脑血管疾病、糖尿病等疾病的防治提供诊疗依据。方法 对我市38078名社区居民采集清晨空腹血清标本,检测血糖(GLU)、甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL C)和低密度脂蛋白胆固醇(LDL C)的结果,并对其进行年龄、性别分组统计分析。结果 不同性别和年龄组间的血脂、血糖水平差异有统计学意义(P<005),74~89岁年龄组血脂、血糖总体水平高于其他各年龄组(P<005);女性血脂水平普遍高于男性(P<005)。结论 中老年人群血脂、血糖异常率高,应定期对中老年人进行血脂、血糖监测,开展宣传教育活动,提高自我保健意识,预防高血脂、高血糖的发生和发展。 相似文献