全文获取类型
收费全文 | 5553篇 |
免费 | 690篇 |
国内免费 | 34篇 |
专业分类
耳鼻咽喉 | 25篇 |
儿科学 | 71篇 |
妇产科学 | 59篇 |
基础医学 | 763篇 |
口腔科学 | 32篇 |
临床医学 | 577篇 |
内科学 | 320篇 |
皮肤病学 | 92篇 |
神经病学 | 221篇 |
特种医学 | 91篇 |
外科学 | 214篇 |
综合类 | 1695篇 |
预防医学 | 1426篇 |
眼科学 | 22篇 |
药学 | 427篇 |
3篇 | |
中国医学 | 126篇 |
肿瘤学 | 113篇 |
出版年
2023年 | 88篇 |
2022年 | 180篇 |
2021年 | 251篇 |
2020年 | 233篇 |
2019年 | 203篇 |
2018年 | 214篇 |
2017年 | 232篇 |
2016年 | 245篇 |
2015年 | 258篇 |
2014年 | 549篇 |
2013年 | 483篇 |
2012年 | 466篇 |
2011年 | 414篇 |
2010年 | 340篇 |
2009年 | 331篇 |
2008年 | 277篇 |
2007年 | 258篇 |
2006年 | 200篇 |
2005年 | 182篇 |
2004年 | 157篇 |
2003年 | 126篇 |
2002年 | 82篇 |
2001年 | 53篇 |
2000年 | 47篇 |
1999年 | 35篇 |
1998年 | 40篇 |
1997年 | 30篇 |
1996年 | 25篇 |
1995年 | 22篇 |
1994年 | 18篇 |
1993年 | 23篇 |
1992年 | 13篇 |
1991年 | 16篇 |
1990年 | 16篇 |
1989年 | 17篇 |
1988年 | 14篇 |
1987年 | 7篇 |
1986年 | 11篇 |
1985年 | 11篇 |
1984年 | 12篇 |
1983年 | 9篇 |
1982年 | 10篇 |
1981年 | 7篇 |
1980年 | 15篇 |
1978年 | 10篇 |
1977年 | 6篇 |
1976年 | 6篇 |
1975年 | 7篇 |
1974年 | 8篇 |
1973年 | 6篇 |
排序方式: 共有6277条查询结果,搜索用时 15 毫秒
81.
82.
83.
ObjectivesThe purpose of this study was to educate on the moderating effects of demographic (i.e., educational level and age) and individual characteristics (i.e., years of nursing experience and computer knowledge) on nurses’ acceptance of information systems (IS). The technology acceptance model (TAM) with its constituent variables such as perceived usefulness (PUSS) and perceived ease of use (PEOU) was the theoretical framework used for this study.MethodsA cross-sectional study was conducted in Nova Scotia, Canada. Usable data was collected from 197 registered nurses (RNs). Relevant hypotheses were formulated and the partial least squares (PLS) technique was used for data analysis.ResultsThe results of the hypothesized relationships showed that education and computer knowledge have positive moderating effects on the influences of PEOU and PUSS on nurses’ attitudes toward IS (ATTI). The factors of nurses’ years of nursing experience and age did not yield meaningful results. ATTI impacted behavioral intentions to use IS, which positively impacted nurses’ use of IS. The nurses sampled in the study have positive IS use behaviors.ConclusionsThis study demonstrates that relevant demographic factors and individual characteristics, if incorporated into frameworks used for investigating nurses’ acceptance of IS, could permit the emergence of useful insights for practitioners and researchers. Specifically, this study showed that nurses with higher educational attainments and more basic computer knowledge readily accept implemented IS at work. Hospital administrators benefit from insights such as the one presented in this study. 相似文献
84.
85.
86.
《Journal of agromedicine》2013,18(2):17-22
ABSTRACT It is estimated that 17,000 farm families are affected by a physical disability, and an additional 42,000 have health-related conditions that affect their ability to complete essential farm or independent operations. When an individual experiences a disability, it affects the person psychologically, physically, and financially. In an effort to address these issues, The Easter Seal Society of Iowa, Inc. developed the Farm Family Rehabilitation Management (FaRM) Program. This program was a consumer responsive approach to prevent secondary injuries/disabilities among farm families affected by physical disabilities. The four components of the program included a peer support technology network, an equipment service program, a “Farming Safely with a Disability” video and tip sheet, and onsite services to farm families. 相似文献
87.
《Journal of cosmetic and laser therapy》2013,15(6):262-264
AbstractAblative laser technology has been in use for many years now. The large side effect profile however has limited its use. Fractional ablative technology is a newer development which combines a lesser side effect profile along with similar efficacy. In this paper we review fractional ablative laser skin resurfacing. 相似文献
88.
For research in biomedical sciences, cross-domain searches through several different databases are an increasingly necessary task that often becomes a time consuming and labour-intense process. This is especially the case when different domain databases have to be combined, for example combined searches in clinical trials registries, publication databases and research databases. The Clinical Trial Information Mediator (CTIM) addresses this problem and offers a novel way for the combined search in ClinicalTrials.gov, PubMed and BioSamples.CTIM was developed based on a requirements analysis and implemented using open source technology. A search engine with a graphical user interface was developed in order to search linked data in the three databases ClinicalTrials.gov, PubMed and BioSamples; thereby enabling CTIM to bridge the gap between different knowledge domains of clinical trials, publications of research results and biosamples/genetic information. CTIM was applied in three use cases demonstrating that information retrieval could be considerably improved in sense for complex queries. These use cases show that more relevant results were obtained and more associated publications and biosamples could be retrieved in comparison to a separate single search.Main advantages of CTIM are identifying related information between clinical trials and publications employing a clinical trial centred kind of search, simplified access to its databases and thus reduced search time. In addition it can be used by researchers without prior training because of the intuitive usage. 相似文献
89.
90.