全文获取类型
收费全文 | 406151篇 |
免费 | 29475篇 |
国内免费 | 10394篇 |
专业分类
耳鼻咽喉 | 4248篇 |
儿科学 | 13142篇 |
妇产科学 | 5758篇 |
基础医学 | 28291篇 |
口腔科学 | 11036篇 |
临床医学 | 46013篇 |
内科学 | 61385篇 |
皮肤病学 | 5855篇 |
神经病学 | 20070篇 |
特种医学 | 16467篇 |
外国民族医学 | 53篇 |
外科学 | 50987篇 |
综合类 | 49451篇 |
现状与发展 | 46篇 |
一般理论 | 6篇 |
预防医学 | 36772篇 |
眼科学 | 7595篇 |
药学 | 46053篇 |
322篇 | |
中国医学 | 21332篇 |
肿瘤学 | 21138篇 |
出版年
2023年 | 5033篇 |
2022年 | 7763篇 |
2021年 | 15828篇 |
2020年 | 13274篇 |
2019年 | 17505篇 |
2018年 | 12374篇 |
2017年 | 11812篇 |
2016年 | 14121篇 |
2015年 | 16601篇 |
2014年 | 31164篇 |
2013年 | 31595篇 |
2012年 | 31774篇 |
2011年 | 29365篇 |
2010年 | 25124篇 |
2009年 | 23516篇 |
2008年 | 21584篇 |
2007年 | 22033篇 |
2006年 | 19204篇 |
2005年 | 14297篇 |
2004年 | 9485篇 |
2003年 | 8327篇 |
2002年 | 6674篇 |
2001年 | 5550篇 |
2000年 | 4693篇 |
1999年 | 3560篇 |
1998年 | 3330篇 |
1997年 | 3068篇 |
1996年 | 2593篇 |
1995年 | 2658篇 |
1994年 | 2489篇 |
1993年 | 2005篇 |
1992年 | 2054篇 |
1991年 | 1911篇 |
1990年 | 1717篇 |
1989年 | 1673篇 |
1988年 | 1523篇 |
1987年 | 1317篇 |
1986年 | 1082篇 |
1985年 | 2098篇 |
1984年 | 2138篇 |
1983年 | 1534篇 |
1982年 | 1670篇 |
1981年 | 1598篇 |
1980年 | 1357篇 |
1979年 | 1181篇 |
1978年 | 886篇 |
1977年 | 875篇 |
1976年 | 765篇 |
1975年 | 501篇 |
1974年 | 489篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Association of Multimodal Pain Control with Patient-Reported Outcomes in Children Undergoing Surgery
《Journal of pediatric surgery》2023,58(6):1206-1212
IntroductionOur aim was to describe practices in multimodal pain management at US children's hospitals and evaluate the association between non-opioid pain management strategies and pediatric patient-reported outcomes (PROs).MethodsData were collected as part of the 18-hospital ENhanced Recovery In CHildren Undergoing Surgery (ENRICH-US) clinical trial. Non-opioid pain management strategies included use of preoperative and postoperative non-opioid analgesics, regional anesthetic blocks, and a biobehavioral intervention. PROs included perioperative nervousness, pain-related functional disability, health-related quality of life (HRQoL). Associations were analyzed using multinomial logistic regression models.ResultsAmong 186 patients, 62 (33%) received preoperative analgesics, 186 (100%) postoperative analgesics, 81 (44%) regional anesthetic block, and 135 (73%) used a biobehavioral intervention. Patients were less likely to report worsened as compared to stable nervousness following regional anesthetic block (relative risk ratio [RRR]:0.31, 95% confidence interval [CI]:0.11–0.85), use of a biobehavioral technique (RRR:0.26, 95% CI:0.10–0.70), and both in combination (RRR:0.08, 95% CI:0.02–0.34). There were no associations of non-opioid pain control modalities with pain-related functional disability or HRQoL.ConclusionUse of postoperative non-opioid analgesics have been largely adopted, while preoperative non-opioid analgesics and regional anesthetic blocks are used less frequently. Regional anesthetic blocks and biobehavioral interventions may mitigate postoperative nervousness in children.Level of evidenceIII. 相似文献
2.
认知障碍是指记忆、语言、理解和判断等一个或多个方面的功能障碍,包括轻度认知障碍和各种类型的痴呆症。痴呆症是认知障碍最严重的表现,是一种导致患者日常生活、社会交往和工作能力发生显著变化的综合征。阿尔茨海默病(AD)是最常见的痴呆症类型,其次是血管性痴呆(VD)和其他神经退行性痴呆[1]。已知年龄与认知功能的退化密切相关。 相似文献
3.
《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
4.
目的观察使用聚甲酚磺醛溶液治疗外阴硬化性苔藓病变的临床疗效。方法对经临床诊断确诊为外阴硬化性苔藓病变且自愿接受本次研究的36例患者使用聚甲酚磺醛溶液,观察其疗效。结果36例外阴硬化性苔藓病变患者经过聚甲酚磺醛溶液3个月疗程治疗,痊愈率达76.9%,显效率为15.4%,有效率为7.7%。结论聚甲酚磺醛溶液能有效治疗外阴硬化性苔藓病变,无论是缓解瘙痒症状,还是改善病灶皮肤病变效果均较好,为广大临床医生提供了治疗此疾患的新思路。 相似文献
5.
6.
目的 探讨集束化干预策略联合闭环管理模式对ICU多重耐药菌感染的防控效果。方法选取2020年1~12月EICU住院患者275例作为对照组,实施常规管理;2021年1~10月EICU住院患者239例作为观察组,在常规管理基础上实施集束化干预策略联合闭环管理。结果实施后,观察组多重耐药菌感染发生率明显低于对照组;患者住院日显著低于对照组,4项护理措施执行率(隔离标识、手卫生、环境消毒、医务人员相关知识知晓)、病原学送检率显著高于对照组(均P<0.05)。结论集束化干预联合信息化闭环管理可有效降低EICU多重耐药菌感染发生率。 相似文献
7.
8.
9.
《Health & place》2022
Interventions that involve key aspects of community organizing, such as quantitative community assessments and organizational partnership support for the community, may promote residents' health. We evaluated the effectiveness of this form of intervention on mortality and its variability across individual-level household equivalized income tertiles, comparing 52,858 residents aged 65 and above in 12 intervention municipalities to 39,006 residents in nine control municipalities in Japan. During 1,166 days of follow-up, the adjusted hazard ratio for cumulative mortality among men in the intervention municipalities was 0.92 (95% confidence interval: 0.86, 0.99) compared to those in the control group, with similar results being observed across all income levels. Active utilization of data to evaluate communities and building intersectoral partnerships might lower older male residents’ mortality risk, regardless of their income status. 相似文献
10.