全文获取类型
收费全文 | 247285篇 |
免费 | 20132篇 |
国内免费 | 4541篇 |
专业分类
耳鼻咽喉 | 3342篇 |
儿科学 | 5070篇 |
妇产科学 | 4133篇 |
基础医学 | 19167篇 |
口腔科学 | 7598篇 |
临床医学 | 24892篇 |
内科学 | 24196篇 |
皮肤病学 | 2730篇 |
神经病学 | 12106篇 |
特种医学 | 6067篇 |
外国民族医学 | 12篇 |
外科学 | 21932篇 |
综合类 | 37725篇 |
现状与发展 | 10篇 |
一般理论 | 30篇 |
预防医学 | 42430篇 |
眼科学 | 2107篇 |
药学 | 22021篇 |
346篇 | |
中国医学 | 26192篇 |
肿瘤学 | 9852篇 |
出版年
2024年 | 697篇 |
2023年 | 4698篇 |
2022年 | 8142篇 |
2021年 | 12094篇 |
2020年 | 11730篇 |
2019年 | 13377篇 |
2018年 | 11957篇 |
2017年 | 10004篇 |
2016年 | 8700篇 |
2015年 | 8375篇 |
2014年 | 17110篇 |
2013年 | 17362篇 |
2012年 | 15286篇 |
2011年 | 16347篇 |
2010年 | 13095篇 |
2009年 | 11459篇 |
2008年 | 10752篇 |
2007年 | 10672篇 |
2006年 | 8972篇 |
2005年 | 7220篇 |
2004年 | 5993篇 |
2003年 | 5289篇 |
2002年 | 4078篇 |
2001年 | 3425篇 |
2000年 | 3039篇 |
1999年 | 2480篇 |
1998年 | 1987篇 |
1997年 | 1753篇 |
1996年 | 1388篇 |
1995年 | 1336篇 |
1994年 | 1195篇 |
1993年 | 1071篇 |
1992年 | 948篇 |
1991年 | 853篇 |
1990年 | 749篇 |
1989年 | 712篇 |
1988年 | 670篇 |
1987年 | 598篇 |
1986年 | 553篇 |
1985年 | 1981篇 |
1984年 | 2336篇 |
1983年 | 1540篇 |
1982年 | 1939篇 |
1981年 | 1423篇 |
1980年 | 1229篇 |
1979年 | 1122篇 |
1978年 | 905篇 |
1977年 | 689篇 |
1976年 | 810篇 |
1975年 | 571篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
111.
F. Giovanardi F. Nudo Q. Lai M. Garofalo A. Consolo E. Choppin De Janvry G.A. Arroyo Murillo P. Ursi D. Stabile F. Melandro P.B. Berloco R. Pretagostini L. Poli 《Transplantation proceedings》2019,51(1):128-131
Background
Arterial vascular anomalies in patients undergoing kidney transplantation (KT) are correlated with a higher incidence of early surgical complications, potentially causing graft loss. Arterial reconstruction allows patients to overcome these surgical challenges, thus minimizing the risk of poor outcomes. The aim of the present study is to retrospectively investigate the safety and effectiveness of the multiple arterial reconstruction technique with a Teflon patch in case of an unavailable aortic patch: to do so, surgical complications, graft function, and patient survival were evaluated.Methods
During the period January 2009 to August 2016, 202 adult deceased-donor KTs were performed at our center. Group A (n = 27; reconstruction of multiple arteries) and Group B (n = 175; control group) were compared.Results
No differences were observed between the 2 groups in terms of early postoperative course, with no vascular complication observed in Group A. No vascular patch infections were reported, nor longer cold ischemia time rates. Similarly, long-term survival rates were similar between the 2 groups.Conclusions
The Teflon-patch arterial reconstruction technique appears to be safe and effective, with an acceptable balance of benefits and potential risks of using a prosthetic material. Studies based on larger series are needed to further validate this approach. 相似文献112.
《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
113.
《Gaceta sanitaria / S.E.S.P.A.S》2022,36(4):376-379
ObjectiveTo estimate the prospective relationships between exposure to psychosocial risks dimensions included in the COPSOQ-Istas21 and the deterioration of general and mental health and sleep problems among workers residing in Spain.MethodCohort whose baseline corresponds to the 2016 Psychosocial Risks Survey with a new measurement after one year.ResultsSocial capital and interpersonal relations and leadership dimensions, as well as work?life conflict, were related to all health variables. Dimensions of work organization and job contents did it especially with the mental health, the quantitative demands with the general health and the emotional ones with the mental health. The dimensions related to job insecurity did not show relationships with health.ConclusionsThe results obtained reinforce the role of the COPSOQ-Istas21 as a useful instrument for the evaluation and prevention of psychosocial risks at work. 相似文献
114.
Family-centered care (FCC) for sick newborns is emerging as a paradigmatic shift in the practice of facility-based newborn care. It seeks to transforming a provider-centered model into a client-centered one and thus build a new therapeutic alliance. FCC is the cornerstone of continuum of care, imparting caregiving competencies to parents/caregivers both within institutions as well as after the discharge. This has potential gains for the newborn, family members, and facility-level staff. The initial model piloted in tertiary-care settings is now undergoing translation at five sites across the country; the outcomes are keenly awaited. 相似文献
115.
目的:探讨责任制整体护理在结直肠外科病房的实施的可能性及实施效果。方法:总结责任制整体护理在某三级甲等医院结直肠外科病房的试验实施方案,调查执行该护理模式前后出院患者的满意程度和临床护理质量,并进行统计学分析。结果:试验执行责任制整体护理后,患者对临床护理的满意程度大幅提高,科室的临床护理质量也有显著提升,但是在护理文件整理方面仍有待调整。结论:责任制整体护理模式在结直肠外科病房可以实现,且能提高患者的满意程度和护理质量,深入实施后,能为患者提供更优质的临床护理服务。 相似文献
116.
目的对中国精神分裂症患者采取家庭干预的研究文献进行综合回顾和系统评价, 比较不同条件下家庭干预效果的差异。方法在中国知网、维普、万方、中国生物医学文献数据库四大中文数据库及OVID Medline、Science Direct、Web of Science、EBSCO四大英文数据库中, 检索各数据库建库至2015年1月为止使用社会功能缺陷筛选量表(SDSS)、简明精神病(科)量表(BPRS)、阳性与阴性症状量表(PANSS)研究中国精神分裂症患者家庭干预效果的文献, 以标准化加权均数差( SMD)作为效应量, 采用meta分析比较不同干预时间、不同干预类型、对不同病程和不同严重程度的精神分裂症患者的家庭干预效果差异。 结果共纳入57篇符合标准的文献。SDSS、PANSS分析结果显示:① 干预时间越长干预效果越好( P < 0.0001、 P=0.0025);② 单独家庭干预比多个家庭合并单独家庭干预的效果更明显( P < 0.0001、 P=0.0131);③ 干预对于病情较重患者效果较好( P < 0.0001、 P=0.0280)。SDSS量表还显示家庭干预对于病程短的患者效果更好( P < 0.0001)。 结论家庭干预更适合病程较短的精神分裂症患者, 干预应实施较长时间; 单独家庭干预更有利于患者阴性症状的改善和社会功能的康复, 且对于病情较轻患者的阴性症状改善效果更好。 相似文献
117.
118.
119.
Lauren Thaete 《Progress in Palliative Care》2019,27(1):10-13
Effective communication between clinicians, patients, and families at end of life is associated with better clinical outcomes. A large body of literature describes the key skills needed for effective communication. We believe that clinicians could also benefit from communication skills more commonly associated with business or law negotiations. We will demonstrate via analogy (i.e. buying a house) how four key business/law negotiation techniques – 1. Determine your Reservation and Aspiration Value; 2. Separate People from their Positions; 3. Separate Positions from Interests; and 4. Logrolling of Interests – can be applied to a difficult family meeting in a home hospice patient. 相似文献
120.
Khaled Adil Marija Popovic Fabio L. Cury Sergio L. Faria Marie Duclos Luis Souhami 《Practical radiation oncology》2019,9(1):24-28