全文获取类型
收费全文 | 84768篇 |
免费 | 6011篇 |
国内免费 | 2250篇 |
专业分类
耳鼻咽喉 | 676篇 |
儿科学 | 2101篇 |
妇产科学 | 2571篇 |
基础医学 | 10581篇 |
口腔科学 | 1536篇 |
临床医学 | 7482篇 |
内科学 | 11163篇 |
皮肤病学 | 1032篇 |
神经病学 | 6033篇 |
特种医学 | 3334篇 |
外国民族医学 | 8篇 |
外科学 | 7782篇 |
综合类 | 10663篇 |
现状与发展 | 4篇 |
一般理论 | 6篇 |
预防医学 | 6219篇 |
眼科学 | 1941篇 |
药学 | 10556篇 |
78篇 | |
中国医学 | 5024篇 |
肿瘤学 | 4239篇 |
出版年
2024年 | 207篇 |
2023年 | 1474篇 |
2022年 | 2897篇 |
2021年 | 3393篇 |
2020年 | 2880篇 |
2019年 | 2811篇 |
2018年 | 2760篇 |
2017年 | 2569篇 |
2016年 | 2407篇 |
2015年 | 2341篇 |
2014年 | 4400篇 |
2013年 | 5390篇 |
2012年 | 4193篇 |
2011年 | 4683篇 |
2010年 | 3701篇 |
2009年 | 3468篇 |
2008年 | 3370篇 |
2007年 | 3458篇 |
2006年 | 3135篇 |
2005年 | 3295篇 |
2004年 | 3031篇 |
2003年 | 2604篇 |
2002年 | 1802篇 |
2001年 | 1748篇 |
2000年 | 1490篇 |
1999年 | 1427篇 |
1998年 | 1313篇 |
1997年 | 1258篇 |
1996年 | 1224篇 |
1995年 | 1303篇 |
1994年 | 1131篇 |
1993年 | 1038篇 |
1992年 | 927篇 |
1991年 | 850篇 |
1990年 | 808篇 |
1989年 | 753篇 |
1988年 | 622篇 |
1987年 | 533篇 |
1986年 | 601篇 |
1985年 | 737篇 |
1984年 | 697篇 |
1983年 | 370篇 |
1982年 | 590篇 |
1981年 | 479篇 |
1980年 | 472篇 |
1979年 | 385篇 |
1978年 | 348篇 |
1977年 | 307篇 |
1976年 | 309篇 |
1975年 | 198篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
1.
2.
《Cirugía espa?ola》2022,100(3):149-153
IntroductionThe Law for the Regulation of Health Professions (LOPS) indicates that health professionals will carry out continuous training throughout their professional life, and will regularly prove their professional competence. The objective of the study was to carry out a national survey to find out the opinion of Spanish surgeons and thus be able to prepare a recertification project by the Spanish Association of Surgeons (AEC).MethodsCross-sectional observational study carried out in June-July 2020, through a survey sent to the members of the AEC.ResultsThe survey had a total of 1230 visits and an overall completion rate of 784 responses (67.3%). 69.6% were unaware of the LOPS forecasts and 83.4% were unaware of similar initiatives in other specialties and 95.5% agreed to demand adequate information. 71.4% believed it necessary but only 57% believed that it should be mandatory. 82.9% would agree that it should be regulated through an objective and predictable official procedure.ConclusionsThe concept of re-accreditation is not well known in our specialty and in view of the results obtained, adequate and reliable information seems necessary. Therefore, it would be pertinent to propose by the AEC a specific project to assess activities and skills. 相似文献
3.
Hannah C. Nordhues Anjali Bhagra Natya N. Stroud Jennifer A. Vencill Carol L. Kuhle 《Mayo Clinic proceedings. Mayo Clinic》2021,96(7):1907-1920
The coronavirus disease 2019 (COVID-19) pandemic has rapidly created widespread impacts on global health and the economy. Data suggest that women are less susceptible to severe illness. However, sex-disaggregated data are incomplete, leaving room for misinterpretation, and focusing only on biologic sex underestimates the gendered impact of the pandemic on women. This narrative review summarizes what is known about gender disparities during the COVID-19 pandemic and the economic, domestic, and health burdens along with overlapping vulnerabilities related to the pandemic. In addition, this review outlines recommended strategies that advocacy groups, community leaders, and policymakers should implement to mitigate the widening gender disparities related to COVID-19. 相似文献
4.
《Digestive and liver disease》2022,54(11):1486-1493
BackgroundCold snare polypectomy (CSP) is a promising technique for the removal of sessile serrated polyps (SSPs) ≥ 10 mm. However, the efficacy and safety of this technique remain undetermined.AimsWe aimed to comprehensively evaluate the efficacy and safety of CSP for SSPs ≥ 10 mm.MethodsPubMed, EMBASE, Web of Science and Cochrane Library were searched up to January 2021.ResultsA total of 10 studies consisting of 1727 SSPs (range, 10–40 mm) from 1021 patients were included. The overall rates of technical success, adverse events (AEs) and residual SSPs were 100%, 0.7% and 2.9%, respectively. Subgroup analysis showed that the rates of technical success and AEs were comparable between CSP and cold endoscopic mucosal resection (EMR) (99.9% vs. 100% and 1.3% vs. 0.5%, respectively), between the proximal and distal colon (100% vs. 99.9% and 0.3% vs. 0, respectively), and between polyps of 10–19 mm and ≥20 mm (99.8% vs. 100% and 0.9% vs. 0, respectively). However, subgroup analysis showed that the rate of residual SSPs was slightly lower in CSP compared with cold EMR (1.3% vs. 3.9%), as well as in polyps of 10–19 mm compared with those ≥20 mm (3.1% vs. 4.7%).ConclusionCSP was an effective and safe technique for removing SSPs ≥ 10 mm. 相似文献
5.
6.
目的:了解流动人口基层首诊现状及其影响因素,为推进流动人口分级诊疗提供实证参考依据。方法:基于2017年全国流动人口动态监测调查数据中82734名最近1次患病(负伤)流动人口数据,利用SPSS 25.0统计软件分析其基层首诊情况及影响因素。结果:82734名最近1次患病(负伤)流动人口中首选到基层医疗卫生机构就诊15936人,基层首诊率仅为19.3%;二分类logistic回归分析结果显示:年龄≥65岁、农业户口、流动时间0~5年、患慢性病、至少参加1项医疗保险,居住地到最近医疗服务机构所需时间≤15 min的流动人口患病后更愿意选择到基层首诊。学历大专及以上、家庭月均收入>10000元、市跨县、东北地区、不愿意落户、自评健康状况为不健康的流动人口患病后更不愿意选择到基层首诊。结论:流动人口患病(负伤)后选择到基层首诊率较低,年龄、受教育程度、户口类型、家庭月均总收入、流动时间、流动范围、流入地区域、落户意愿、自评健康状况、是否患慢性病、有无参加医疗保险、居住地到最近医疗服务机构所需时间是影响流动人口患病(负伤)后选择到基层首诊的主要因素。 相似文献
7.
8.
《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
9.
《The British journal of oral & maxillofacial surgery》2022,60(4):499-506
The aim of this study was to carry out a retrospective multicentre study comparing the morphological outcome of 8 techniques used for the management of sagittal synostosis versus a large cohort of control patients. Computed tomographic (CT) images were obtained from children CT-scanned for non-craniosynostosis related events (n = 241) and SS patients at preoperative and postoperative follow-up stages (n = 101). No significant difference in morphological outcomes was observed between the techniques considered in this study. However, the majority of techniques showed a tendency for relapse. Further, the more invasive procedures at older ages seem to lead to larger intracranial volume compared to less invasive techniques at younger ages. This study can be a first step towards future multicentre studies, comparing surgical results and offering a possibility for objective benchmarking of outcomes between methods and centres. 相似文献
10.