全文获取类型
收费全文 | 98799篇 |
免费 | 7821篇 |
国内免费 | 1481篇 |
专业分类
耳鼻咽喉 | 477篇 |
儿科学 | 824篇 |
妇产科学 | 563篇 |
基础医学 | 2649篇 |
口腔科学 | 929篇 |
临床医学 | 47469篇 |
内科学 | 10223篇 |
皮肤病学 | 269篇 |
神经病学 | 3653篇 |
特种医学 | 1258篇 |
外国民族医学 | 6篇 |
外科学 | 5257篇 |
综合类 | 12435篇 |
一般理论 | 3篇 |
预防医学 | 10622篇 |
眼科学 | 279篇 |
药学 | 5963篇 |
473篇 | |
中国医学 | 3413篇 |
肿瘤学 | 1336篇 |
出版年
2024年 | 384篇 |
2023年 | 2356篇 |
2022年 | 3519篇 |
2021年 | 4927篇 |
2020年 | 5579篇 |
2019年 | 3996篇 |
2018年 | 3537篇 |
2017年 | 4168篇 |
2016年 | 4498篇 |
2015年 | 4275篇 |
2014年 | 9142篇 |
2013年 | 8910篇 |
2012年 | 7483篇 |
2011年 | 7517篇 |
2010年 | 5863篇 |
2009年 | 5169篇 |
2008年 | 4576篇 |
2007年 | 4643篇 |
2006年 | 3839篇 |
2005年 | 3161篇 |
2004年 | 2323篇 |
2003年 | 1691篇 |
2002年 | 1325篇 |
2001年 | 1175篇 |
2000年 | 916篇 |
1999年 | 713篇 |
1998年 | 556篇 |
1997年 | 427篇 |
1996年 | 323篇 |
1995年 | 226篇 |
1994年 | 168篇 |
1993年 | 133篇 |
1992年 | 142篇 |
1991年 | 96篇 |
1990年 | 72篇 |
1989年 | 37篇 |
1988年 | 50篇 |
1987年 | 36篇 |
1986年 | 24篇 |
1985年 | 20篇 |
1984年 | 12篇 |
1983年 | 12篇 |
1982年 | 22篇 |
1981年 | 12篇 |
1980年 | 9篇 |
1979年 | 8篇 |
1978年 | 7篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1971年 | 4篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
43.
Past research suggests that as many as 50% of onward human immunodeficiency virus (HIV) transmissions occur during acute and recent HIV infection. It is clearly important to develop interventions which focus on this highly infectious stage of HIV infection to prevent further transmission in the risk networks of acutely and recently infected individuals. Project Protect tries to find recently and acutely infected individuals and prevents HIV transmission in their risk networks. Participants are recruited by community health outreach workers at community-based HIV testing sites and drug users' community venues, by coupon referrals and through referrals from AIDS clinics. When a network with acute/recent infection is identified, network members are interviewed about their risky behaviors, network information is collected, and blood is drawn for HIV testing. Participants are also educated and given prevention materials (condoms, syringes, educational materials); HIV-infected participants are referred to AIDS clinics and are assisted with access to care. Community alerts about elevated risk of HIV transmission are distributed within the risk networks of recently infected. Overall, 342 people were recruited to the project and screened for acute/recent HIV infection. Only six index cases of recent infection (2.3% of all people screened) were found through primary screening at voluntary counseling and testing (VCT) sites, but six cases of recent infection were found through contact tracing of these recently infected participants (7% of network members who came to the interview). Combining screening at VCT sites and contact tracing the number of recently infected people we located as compared to VCT screening alone. No adverse events were encountered. These first results provide evidence for the theory behind the intervention, i.e., in the risk networks of recently infected people there are other people with recent HIV infection and they can be successfully located without increasing stigma for project participants. 相似文献
44.
Nurse perceptions of the Nursing Delirium Screening Scale in two palliative care inpatient units: a focus group study
下载免费PDF全文
![点击此处可从《Journal of clinical nursing》网站下载免费的PDF全文](/ch/ext_images/free.gif)
45.
46.
47.
48.
目的本文主要研究和探讨护理干预对放疗科头颈部肿瘤放疗患者生活质量的影响。方法将我院2017年2月份至2018年10月份收治的100例头颈部肿瘤放疗患者作为本次研究的对象,在随机原则的指导下把100例患者分为对照组和实验组,每组患者的数量为50例。对照组患者给予常规护理,实验组患者实施护理干预,对两组患者的生活质量、睡眠质量、护理满意度和护理依从性等进行对比分析。结果在生活质量、睡眠质量、护理满意度和护理依从性等方面,组间进行对比分析,实验组都明显优于对照组,P<0.05差异具有统计学意义。结论对头颈部肿瘤放疗患者实施护理干预可以让患者的生活质量、睡眠质量、护理依从性以及护理满意度等都得到显著的改善,从而让患者以一种积极、乐观的心态接受放疗,这对于放疗效果的提高具有重要的作用。总之,这一护理模式应该在临床中进行推广和使用。 相似文献
49.
Nursing schools strive to select a diverse student population who are likely to succeed by ensuring timely student progression through the program and effective use of educational sources. The purpose of this systematic literature review is to explore the preadmission variables and selection criteria that predict student success in 4-year baccalaureate nursing programs in the U.S. Sixteen articles met the eligibility criteria, and six measures were used to define student success: (a) early academic success, particularly during the first and second year; (b) attrition; (c) timely completion of the program; (d) graduation; (e) performance in nursing courses; and (f) academic performance in other science courses. Typically, the core set of cognitive predictors used in the admission process in nursing schools were pre-nursing GPA, pre-nursing collegiate science GPA, and scores on standardized aptitude exams. This review suggests that it is challenging to isolate one single variable as the best predictor of student success; however, using a combination of variables can offer a reliable prediction method. More researchers should consider using a theoretical basis to guide their inquiry on this topic. Additionally, researchers should examine admission variables that are most relevant across programs. 相似文献