全文获取类型
收费全文 | 11997篇 |
免费 | 662篇 |
国内免费 | 54篇 |
专业分类
耳鼻咽喉 | 63篇 |
儿科学 | 335篇 |
妇产科学 | 163篇 |
基础医学 | 905篇 |
口腔科学 | 229篇 |
临床医学 | 1564篇 |
内科学 | 2186篇 |
皮肤病学 | 145篇 |
神经病学 | 552篇 |
特种医学 | 186篇 |
外科学 | 968篇 |
综合类 | 1163篇 |
预防医学 | 1648篇 |
眼科学 | 170篇 |
药学 | 1077篇 |
5篇 | |
中国医学 | 898篇 |
肿瘤学 | 456篇 |
出版年
2024年 | 5篇 |
2023年 | 311篇 |
2022年 | 502篇 |
2021年 | 642篇 |
2020年 | 570篇 |
2019年 | 1212篇 |
2018年 | 905篇 |
2017年 | 510篇 |
2016年 | 215篇 |
2015年 | 255篇 |
2014年 | 740篇 |
2013年 | 665篇 |
2012年 | 581篇 |
2011年 | 606篇 |
2010年 | 458篇 |
2009年 | 432篇 |
2008年 | 352篇 |
2007年 | 283篇 |
2006年 | 216篇 |
2005年 | 177篇 |
2004年 | 112篇 |
2003年 | 96篇 |
2002年 | 61篇 |
2001年 | 70篇 |
2000年 | 55篇 |
1999年 | 37篇 |
1998年 | 24篇 |
1997年 | 20篇 |
1996年 | 22篇 |
1995年 | 25篇 |
1994年 | 17篇 |
1993年 | 8篇 |
1992年 | 6篇 |
1991年 | 6篇 |
1989年 | 13篇 |
1988年 | 8篇 |
1987年 | 5篇 |
1985年 | 205篇 |
1984年 | 297篇 |
1983年 | 269篇 |
1982年 | 263篇 |
1981年 | 257篇 |
1980年 | 200篇 |
1979年 | 197篇 |
1978年 | 140篇 |
1977年 | 146篇 |
1976年 | 169篇 |
1975年 | 139篇 |
1974年 | 101篇 |
1973年 | 98篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
5.
目的 探讨精神科护士夜班经历创伤事件后的成长体验,以期为护士不同阶段心理情况进行针对性干预和指导,并为护士职业生涯早期心理建设提供方向。方法 采用扎根理论的研究方法,2020年3月—7月对广东省某三级甲等医院12名夜班经历创伤事件的精神科护士进行深度访谈,采用Strauss和Corbin扎根理论分析资料,分为开放式登录、轴心式登录和选择式登录3个阶段,持续比较分析资料。结果 发现精神科护士夜班经历创伤事件后经历了应激期、调适期、成长期3个不同阶段。结论 精神科护士夜班经历创伤事件后的成长为动态过程,管理者或干预者可根据不同阶段进行针对性干预和指导,并在护士早期培训中促使其提前做好相关知识、技能的储备和必备心理素质的塑造。 相似文献
6.
7.
《Journal of vascular and interventional radiology : JVIR》2022,33(9):1073-1082.e2
PurposeTo create a nonsurgical animal model of osteoarthritis (OA) to evaluate the effects of embolotherapy during geniculate artery embolization (GAE).Materials and MethodsFluoroscopy-guided injections of 700 mg of sodium monoiodoacetate were performed into the left stifle in 6 rams. Kinematic data were collected before and after induction. At 10 weeks after induction, Subjects 1 and 4–6 underwent magnetic resonance (MR) imaging with dynamic contrast enhancement (DCE) and Subjects 1, 3, and 4–6 underwent angiography with angiographic scoring to identify regions with greatest disease severity for superselective embolization (75–250-μm microspheres). Target vessel size was measured. At 24 weeks after angiography, DCE-MR imaging, angiography, and euthanasia were performed, and bilateral stifles were harvested. Medial/lateral tibial and femoral condylar, patellar, and synovial samples were cut, preserved, decalcified, and scored using the Osteoarthritis Research Society International criteria. The stifle and synovium Whole-Organ Magnetic Resonance Imaging Score and Multicenter Osteoarthritis Study score were determined. The volume transfer constant (Ktrans) and extracellular volume fraction (ve) were calculated from DCE-MR imaging along the lateral synovial regions of interest.ResultsThe mean gross and microscopic pathological scores were elevated at 38 and 61, respectively. Mean synovitis score was elevated at 9.2. Mean pre-embolization and postembolization angiographic scores were 5 and 3.8, respectively. Mean superior, transverse, and inferior geniculate artery diameters were 3.1 mm ± 1.21, 2.0 mm ± 0.50, and 1.6 mm ± 0.41 mm, respectively. Mean pre-embolization and postembolization cartilage and synovitis scores were elevated at 35.13 and 73.3 and 5.5 and 9.2, respectively. The Ktrans/ve values of Subjects 4, 5, and 6 were elevated at 0.049/0.38, 0.074/0.53, and 0.065/0.51, respectively. Altered gait of the hind limb was observed in all subjects after induction, with reduced joint mobility. No skin necrosis or osteonecrosis was observed.ConclusionsA nonsurgical ovine animal knee OA model was created, which allowed the collection of angiographic, histopathological, MR imaging, and kinematic data to study the effects of GAE. 相似文献
8.
9.
《Journal of pediatric surgery》2023,58(9):1783-1788
BackgroundRecent studies have described the use of telehealth for pediatric surgical care during the COVID-19 pandemic. We aimed to evaluate equity in telehealth use by comparing rates of utilization and satisfaction with pediatric surgical telemedicine among Hispanic patients.MethodsWe conducted a retrospective cohort study of patients seen by a surgical subspecialty provider in the outpatient setting at a quaternary pediatric hospital between April 1 and June 30, 2020. Patients evaluated in the same three-month period in 2019 were analyzed as a historic control. Differences in Family Experience Survey (FES) responses based on race and ethnicity and preferred language of care were assessed using univariable and multivariable generalized linear modeling.ResultsThe pandemic cohort included fewer patients of Hispanic ethnicity and fewer Spanish-speakers. After controlling for visit type, comparison of Spanish-speaking and English-speaking patients revealed that Spanish-speaking families had significantly lower scores for FES items that evaluated healthcare provider explaining (IRR 0.74, 95% CI: 0.61–0.90), listening (IRR 0.76, 95% CI: 0.63–0.92), and time spent with the family (IRR 0.73, 95% CI: 0.60–0.89). There were no differences in FES responses based on insurance status or degree of medical complexity.ConclusionsTelehealth services were less commonly used among Hispanic and Spanish-speaking patients. Language may differentially affect family satisfaction with healthcare and telehealth solutions. Strategies to mitigate these inequities are needed and may include strengthening interpreter services and providing language-concordant care.Level of evidenceLevel IV. 相似文献