全文获取类型
收费全文 | 18420篇 |
免费 | 1880篇 |
国内免费 | 210篇 |
专业分类
耳鼻咽喉 | 352篇 |
儿科学 | 539篇 |
妇产科学 | 937篇 |
基础医学 | 942篇 |
口腔科学 | 426篇 |
临床医学 | 2055篇 |
内科学 | 3435篇 |
皮肤病学 | 182篇 |
神经病学 | 1384篇 |
特种医学 | 173篇 |
外科学 | 4367篇 |
综合类 | 757篇 |
现状与发展 | 3篇 |
一般理论 | 5篇 |
预防医学 | 2487篇 |
眼科学 | 215篇 |
药学 | 891篇 |
12篇 | |
中国医学 | 157篇 |
肿瘤学 | 1191篇 |
出版年
2024年 | 67篇 |
2023年 | 827篇 |
2022年 | 960篇 |
2021年 | 1551篇 |
2020年 | 1315篇 |
2019年 | 1356篇 |
2018年 | 1338篇 |
2017年 | 1144篇 |
2016年 | 933篇 |
2015年 | 812篇 |
2014年 | 1296篇 |
2013年 | 1679篇 |
2012年 | 716篇 |
2011年 | 813篇 |
2010年 | 548篇 |
2009年 | 679篇 |
2008年 | 616篇 |
2007年 | 580篇 |
2006年 | 456篇 |
2005年 | 403篇 |
2004年 | 339篇 |
2003年 | 259篇 |
2002年 | 225篇 |
2001年 | 222篇 |
2000年 | 145篇 |
1999年 | 167篇 |
1998年 | 161篇 |
1997年 | 113篇 |
1996年 | 118篇 |
1995年 | 92篇 |
1994年 | 89篇 |
1993年 | 58篇 |
1992年 | 41篇 |
1991年 | 51篇 |
1990年 | 36篇 |
1989年 | 38篇 |
1988年 | 29篇 |
1987年 | 17篇 |
1986年 | 27篇 |
1985年 | 41篇 |
1984年 | 37篇 |
1983年 | 28篇 |
1982年 | 25篇 |
1981年 | 16篇 |
1980年 | 14篇 |
1979年 | 5篇 |
1978年 | 10篇 |
1977年 | 4篇 |
1976年 | 4篇 |
1975年 | 4篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
Anela Stanic Denis Rybin Francis Cannata Carole Hohl Jennifer Brody Jessie Gaeta 《AIDS care》2021,33(1):1-9
ABSTRACT The lack of stable housing can impair access and continuity of care for patients living with human immunodeficiency virus (HIV). This study investigated the relationship between housing status assessed at multiple time points and several core HIV-related outcomes within the same group of HIV patients experiencing homelessness. Patients with consistently stable housing (CSH) during the year were compared to patients who lacked CSH (non-CSH group). The study outcomes included HIV viral load (VL), CD4 counts, and health care utilization. Multivariable and propensity weighted analyses were used to assess outcomes adjusting for potential group differences. Of 208 patients, 88 (42%) had CSH and 120 (58%) were non-CSH. Patients with CSH had significantly higher proportion of VL suppression and higher mean CD4 counts. The frequency of nurse visits in the CSH group was less than a half of that in the non-CSH group. Patients with CSH were less likely to be admitted to the medical respite facility, and if admitted, their length of stay was about a half of that for the non-CSH group. Our study findings show that patients with CSH had significantly better HIV virologic control and immune status as well as improved health care utilization. 相似文献
5.
Virginija Pokut Rta Kazlauskait Irmina Matonyt 《Health & social care in the community》2022,30(1):193-202
Demographic situation, changes in the role of women in society and growing demand for long-term care (LTC) of older people have challenged the ability to meet the growing LTC needs in most developed countries. In countries where responsibility for LTC is still largely laid on families, it is, however, even more critical and calls for improvements in formal LTC systems. More intensive stakeholder collaboration in LTC policy development, organising and delivery are of primary importance in improving LTC systems. Such collaboration, however, is not always successful; thus, it is critical to understand what makes it effective and efficient. In this paper, we specifically look into multistakeholder collaboration in LTC in Lithuania, one of the fastest ageing countries in the EU, with the demand for LTC services growing fast and exceeding the supply despite rising business and NGO engagement. To determine facilitators of such collaboration, we build on the data obtained through eight focus group discussions with all key stakeholder representatives (LTC policymakers, organisers and service providers [public, private and NGOs], 54 participants in total). Our findings indicate that in addition to national and organisational level facilitators studied in prior research, there are important individual level factors, such as meaningfulness at work, concern and care for others, possibility for personal growth and development, satisfaction with supervision, a sense of belonging and role clarity. On the other hand, our results show that collaboration is constrained by a shortage of human resources, increased workload caused by growing LTC demand, bureaucratic requirements, legal restrictions, lack of awareness of LTC service availability among elder persons, and prevailing social norms and attitudes to institutionalised care. Interestingly, a lack of financial resources is not perceived as a major constraint. 相似文献
6.
7.
8.
Glaucoma, an irreversible blinding condition affecting 3–4% adults aged above 40 years worldwide, is set to increase with a rapidly aging global population. Raised intraocular pressure (IOP) is a major risk factor for glaucoma where the treatment paradigm is focused on managing IOP using medications, laser, or surgery regimens. However, notwithstanding IOP and other clinical parameters, patient-reported outcomes, including daily functioning, emotional well-being, symptoms, mobility, and social life, remain the foremost concerns for people being treated for glaucoma. These outcomes are measured using objective patient-centered outcome measures (PCOMs) and subjective patient-reported outcome measures (PROMs). Studies using PCOMs have shown that people with glaucoma have several mobility, navigational and coordination challenges; reading and face recognition deficits; and are slower in adapting to multiple real-world situations when compared to healthy controls. Similarly, studies have consistently demonstrated, using PROMs, that glaucoma substantially and negatively impacts on peoples’ self-reported visual functioning, mobility, independence, emotional well-being, self-image, and confidence in healthcare, compared to healthy individuals, particularly in those with late-stage disease undergoing a heavy treatment regimen. The patient-centred effectiveness of current glaucoma treatment paradigms is equivocal due to a lack of well-designed randomized controlled trials; short post-treatment follow-up periods; an inappropriate selection or availability of PROMs; and/or an insensitivity of currently available PROMs to monitor changes especially in patients with newly diagnosed early-stage glaucoma. We provide a comprehensive, albeit non-systematic, critique of the psychometric properties, limitations, and recent advances of currently available glaucoma-specific PCOMs and PROMs. Finally, we propose that item banking and computerized adaptive testing methods can address the multiple limitations of paper-pencil PROMs; customize their administration; and have the potential to improve healthcare outcomes for people with glaucoma. 相似文献
9.
10.