全文获取类型
收费全文 | 102603篇 |
免费 | 9989篇 |
国内免费 | 203篇 |
专业分类
耳鼻咽喉 | 1288篇 |
儿科学 | 3298篇 |
妇产科学 | 2477篇 |
基础医学 | 14647篇 |
口腔科学 | 2312篇 |
临床医学 | 12871篇 |
内科学 | 18044篇 |
皮肤病学 | 1565篇 |
神经病学 | 9243篇 |
特种医学 | 3038篇 |
外国民族医学 | 10篇 |
外科学 | 13071篇 |
综合类 | 1908篇 |
一般理论 | 111篇 |
预防医学 | 12151篇 |
眼科学 | 2220篇 |
药学 | 8131篇 |
1篇 | |
中国医学 | 105篇 |
肿瘤学 | 6304篇 |
出版年
2021年 | 1525篇 |
2020年 | 1075篇 |
2019年 | 1653篇 |
2018年 | 1951篇 |
2017年 | 1455篇 |
2016年 | 1546篇 |
2015年 | 1744篇 |
2014年 | 2389篇 |
2013年 | 3643篇 |
2012年 | 5011篇 |
2011年 | 5339篇 |
2010年 | 2849篇 |
2009年 | 2733篇 |
2008年 | 4529篇 |
2007年 | 4993篇 |
2006年 | 4853篇 |
2005年 | 4825篇 |
2004年 | 4559篇 |
2003年 | 4219篇 |
2002年 | 4077篇 |
2001年 | 2878篇 |
2000年 | 2947篇 |
1999年 | 2652篇 |
1998年 | 1280篇 |
1997年 | 1062篇 |
1996年 | 1000篇 |
1995年 | 903篇 |
1994年 | 899篇 |
1993年 | 851篇 |
1992年 | 2165篇 |
1991年 | 2088篇 |
1990年 | 1950篇 |
1989年 | 1913篇 |
1988年 | 1812篇 |
1987年 | 1821篇 |
1986年 | 1715篇 |
1985年 | 1707篇 |
1984年 | 1429篇 |
1983年 | 1311篇 |
1982年 | 903篇 |
1981年 | 771篇 |
1980年 | 694篇 |
1979年 | 1249篇 |
1978年 | 908篇 |
1977年 | 794篇 |
1976年 | 754篇 |
1975年 | 743篇 |
1974年 | 898篇 |
1973年 | 793篇 |
1972年 | 762篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
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
2.
3.
4.
Aliyah Hussein Kiran Sran Imran Ali Janine Woellner Helen Wilcox Stephen D. Marks Helen Jones Chris Callaghan 《Pediatric transplantation》2020,24(4)
Transplant ureteric stent insertion reduces the incidence of MUCs, but it is not known whether routine PSRGU is needed to detect unmasked MUCs. This study evaluated whether routine PSRGU in the pRTR is a useful tool to identify MUCs before they become clinically apparent. A retrospective analysis was undertaken of the clinical outcomes following elective stent removal from pediatric kidney‐only transplant recipients at two London centers between 2012 and 2016. Our policy was to perform PSRGU either routinely or urgently if there were concerning symptoms or biochemical evidence of renal allograft dysfunction. Elective stent removal was performed in 86% (97 of 113 pRTR), and 75 (77%) of whom had routine PSRGU at a median (IQR) of 6 (2‐8) days after stent removal. There were changes to management in 3 (4%) of pRTR with PSRGU identifying no MUC. Nineteen patients (25%) had urgent PSRGU, most commonly due to renal allograft dysfunction, at a median (IQR) of 5.5 (2.7‐12.3) days after stent removal. Of these, two pRTR required ureteric intervention. For our current practice of removing transplant stents at 4‐6 weeks post‐transplantation, our study has found no evidence to support routine PSRGU after elective stent removal. 相似文献
5.
6.
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
7.
8.
9.
10.