全文获取类型
收费全文 | 96800篇 |
免费 | 9229篇 |
国内免费 | 203篇 |
专业分类
耳鼻咽喉 | 1265篇 |
儿科学 | 2982篇 |
妇产科学 | 2254篇 |
基础医学 | 13616篇 |
口腔科学 | 2213篇 |
临床医学 | 12199篇 |
内科学 | 17138篇 |
皮肤病学 | 1567篇 |
神经病学 | 8245篇 |
特种医学 | 3046篇 |
外国民族医学 | 10篇 |
外科学 | 12656篇 |
综合类 | 1779篇 |
现状与发展 | 1篇 |
一般理论 | 83篇 |
预防医学 | 11433篇 |
眼科学 | 2183篇 |
药学 | 7661篇 |
1篇 | |
中国医学 | 89篇 |
肿瘤学 | 5811篇 |
出版年
2022年 | 692篇 |
2021年 | 1452篇 |
2020年 | 932篇 |
2019年 | 1476篇 |
2018年 | 1800篇 |
2017年 | 1267篇 |
2016年 | 1400篇 |
2015年 | 1616篇 |
2014年 | 2129篇 |
2013年 | 3334篇 |
2012年 | 4533篇 |
2011年 | 4877篇 |
2010年 | 2599篇 |
2009年 | 2409篇 |
2008年 | 4223篇 |
2007年 | 4561篇 |
2006年 | 4415篇 |
2005年 | 4462篇 |
2004年 | 4163篇 |
2003年 | 3894篇 |
2002年 | 3794篇 |
2001年 | 2805篇 |
2000年 | 2892篇 |
1999年 | 2598篇 |
1998年 | 1198篇 |
1997年 | 1003篇 |
1996年 | 979篇 |
1995年 | 891篇 |
1994年 | 869篇 |
1993年 | 820篇 |
1992年 | 2148篇 |
1991年 | 2069篇 |
1990年 | 1937篇 |
1989年 | 1894篇 |
1988年 | 1809篇 |
1987年 | 1803篇 |
1986年 | 1708篇 |
1985年 | 1689篇 |
1984年 | 1429篇 |
1983年 | 1292篇 |
1982年 | 880篇 |
1981年 | 756篇 |
1979年 | 1225篇 |
1978年 | 888篇 |
1977年 | 768篇 |
1976年 | 722篇 |
1975年 | 719篇 |
1974年 | 862篇 |
1973年 | 758篇 |
1972年 | 738篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Isolated patellofemoral arthritis is an increasingly recognized entity, and is usually associated with previous patellofemoral dysplasia or instability. Patellofemoral arthroplasty (PFA) has evolved significantly in recent years, both in terms of implant design and importantly in the understanding of appropriate patient selection. This review outlines the indications and investigations for PFA, provides a brief history of the development of contemporary implants, and presents the clinical outcomes for the prostheses most commonly used in the UK. In addition, it provides a detailed surgical technique for implantation of an onlay implant, with tips on how to optimize patellofemoral biomechanics and thus achieve a consistently good outcome. 相似文献
3.
4.
Amanda Bolderston Jackie Middleton Cynthia Palmaria Susan Cauti Susan Fawcett 《Journal of Medical Imaging and Radiation Sciences》2021,52(2):160-163
Lesbian, gay, bisexual, transgender, queer and two-spirit plus (LGBTQ2S+) people have distinct healthcare needs that may be unaddressed in many undergraduate healthcare curricula. The Radiation Therapy Program (RADTH) at the University of Alberta underwent a review of the three-year didactic curriculum using an online survey. The survey sought to ascertain if, where and how topics related to LGBTQ2S + healthcare are taught. Results indicated that out of 10 RADTH program faculty respondents, three teach related topics. The total time dedicated within the three-year curriculum was approximately three and a half hours. Other findings showed that faculty are interested in receiving more education in this area and would favour discussions about how to incorporate these themes into appropriate courses. This preliminary investigation demonstrated that there has been some initial work in this area, but there is more to be done. 相似文献
5.
6.
Alexandra B. Morshed Rachel G. Tabak Cynthia D. Schwarz Debra Haire-Joshu 《Journal of nutrition education and behavior》2019,51(2):237-244
Objective
To examine whether a healthy weight intervention embedded in the Parents as Teachers (PAT) home visiting program, which was previously found to improve mothers’ body mass index (BMI) and obesity-related behaviors, changed the BMI of preschool children or maternal feeding practices.Methods
This stratified randomized trial included preschool-aged children at risk for overweight whose mothers were overweight or had obesity (n?=?179). The Healthy Eating and Active Living Taught at Home (HEALTH) intervention was based on the Diabetes Prevention Program. Differences were examined using repeated-measures mixed-ANOVA models.Results
Compared with PAT usual care, the HEALTH intervention had no effect on children's BMI or maternal feeding practices. However, combined analyses showed that children's BMI percentile decreased (P??=?.007), BMI z-scores were maintained (P??=?.19), and 3 of 8 feeding practices improved over time (P < .05).Conclusions and Implications
Additional research is needed to assess the effectiveness of PAT to prevent preschool-age obesity using rigorous designs (eg, group-randomized trials) and to identify its active components. HEALTH is ready to be scaled up to prevent maternal weight gain through embedding within the national PAT program. 相似文献7.
8.
James Milligan Joseph Lee Matt Smith Lindsay Donaldson Peter Athanasopoulos Kent Bassett-Spiers 《The journal of spinal cord medicine》2020,43(2):223-233
Context: Persons with spinal cord injury (SCI) experience significant challenges when they access primary care and community services.Design: A provincial summit was held to direct research, education, and innovation for primary and community care for SCI.Setting: Toronto, Ontario, Canada.Participants: Key stakeholders (N?=?95) including persons with SCI and caregivers, clinicians from primary care, rehabilitation, and specialized care, researchers, advocacy groups, and policy makers.Methods: A one-day facilitated meeting that included guest speakers, panel discussions and small group discussions was held to generate potential solutions to current issues related to SCI care and to foster collaborative relationships to advance care for SCI. Perspectives on SCI management were shared by primary care, neurosurgery, rehabilitation, and members of the SCI communityOutcome Measures: Discussions were focused on five domains: knowledge translation and dissemination, application of best practices, communication, research, and patient service accessibility.Results: Summit participants identified issues and prioritized solutions to improve primary and community care including the creation of a network of key stakeholders to enable knowledge creation and dissemination; an online repository of SCI resources, integrated health records, and a clinical network for SCI care; development and implementation of strategies to improve care transitions across sectors; implementation of effective care models and improved access to services; and utilization of empowerment frameworks to support self-management.Conclusions: This summit identified priorities for further collaborative efforts to advance SCI primary and community care and will inform the development of a provincial SCI strategy aimed at improving the system of care for SCI. 相似文献
9.