首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   19562篇
  免费   2337篇
  国内免费   199篇
耳鼻咽喉   374篇
儿科学   1874篇
妇产科学   1633篇
基础医学   1113篇
口腔科学   307篇
临床医学   2318篇
内科学   3019篇
皮肤病学   236篇
神经病学   1012篇
特种医学   196篇
外科学   4115篇
综合类   1075篇
现状与发展   1篇
一般理论   5篇
预防医学   2519篇
眼科学   188篇
药学   950篇
  27篇
中国医学   121篇
肿瘤学   1015篇
  2024年   68篇
  2023年   742篇
  2022年   854篇
  2021年   1485篇
  2020年   1366篇
  2019年   1528篇
  2018年   1473篇
  2017年   1276篇
  2016年   1127篇
  2015年   998篇
  2014年   1477篇
  2013年   1777篇
  2012年   840篇
  2011年   948篇
  2010年   631篇
  2009年   694篇
  2008年   621篇
  2007年   633篇
  2006年   495篇
  2005年   408篇
  2004年   332篇
  2003年   253篇
  2002年   237篇
  2001年   209篇
  2000年   156篇
  1999年   162篇
  1998年   138篇
  1997年   149篇
  1996年   118篇
  1995年   90篇
  1994年   85篇
  1993年   66篇
  1992年   49篇
  1991年   57篇
  1990年   33篇
  1989年   45篇
  1988年   35篇
  1987年   29篇
  1986年   40篇
  1985年   49篇
  1984年   43篇
  1983年   36篇
  1982年   40篇
  1981年   43篇
  1980年   34篇
  1979年   29篇
  1978年   25篇
  1977年   17篇
  1976年   12篇
  1974年   9篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
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   
4.
The objectives of this study were to factor analyze the Moral Distress Scale–Revised (MDS-R) in NICU nurses and to evaluate the relationships among dimensions of the MDS-R and the demoralization, exhaustion, and loss of motive dimensions of the Burnout Measure (BM). A total of 142 NICU nurses completed modified pen-and-paper versions of the MDS-R and BM. Exploratory and confirmatory factor analyses showed that the MDS-R-14 was a relatively good fit for the data. The compromised care dimension predicted BM demoralization (β = 0.24) and exhaustion (β = 0.22), the futile care dimension predicted BM exhaustion (β = 0.18), and the untruthful care dimension predicted BM demoralization (β = .25). Strategies to mitigate moral distress and resulting burnout in NICU nurses should address futile care, compromised care, and untruthful care.  相似文献   
5.
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.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号