收费全文 | 1421666篇 |
免费 | 118895篇 |
国内免费 | 6674篇 |
耳鼻咽喉 | 18358篇 |
儿科学 | 45879篇 |
妇产科学 | 38492篇 |
基础医学 | 194799篇 |
口腔科学 | 39092篇 |
临床医学 | 126515篇 |
内科学 | 298915篇 |
皮肤病学 | 34711篇 |
神经病学 | 117516篇 |
特种医学 | 57290篇 |
外国民族医学 | 276篇 |
外科学 | 220831篇 |
综合类 | 32090篇 |
现状与发展 | 2篇 |
一般理论 | 440篇 |
预防医学 | 115081篇 |
眼科学 | 30077篇 |
药学 | 99599篇 |
5篇 | |
中国医学 | 2744篇 |
肿瘤学 | 74523篇 |
2019年 | 11771篇 |
2018年 | 16761篇 |
2017年 | 12633篇 |
2016年 | 14629篇 |
2015年 | 16199篇 |
2014年 | 22806篇 |
2013年 | 33929篇 |
2012年 | 42495篇 |
2011年 | 45650篇 |
2010年 | 28043篇 |
2009年 | 26734篇 |
2008年 | 41341篇 |
2007年 | 43864篇 |
2006年 | 44647篇 |
2005年 | 43288篇 |
2004年 | 41097篇 |
2003年 | 39919篇 |
2002年 | 37543篇 |
2001年 | 68183篇 |
2000年 | 70439篇 |
1999年 | 58350篇 |
1998年 | 17278篇 |
1997年 | 15474篇 |
1996年 | 16340篇 |
1995年 | 16563篇 |
1994年 | 15369篇 |
1993年 | 14359篇 |
1992年 | 47582篇 |
1991年 | 46150篇 |
1990年 | 44361篇 |
1989年 | 42117篇 |
1988年 | 39070篇 |
1987年 | 38352篇 |
1986年 | 36107篇 |
1985年 | 34881篇 |
1984年 | 26528篇 |
1983年 | 22275篇 |
1982年 | 13977篇 |
1981年 | 12582篇 |
1980年 | 11827篇 |
1979年 | 23677篇 |
1978年 | 17187篇 |
1977年 | 14446篇 |
1976年 | 13257篇 |
1975年 | 13789篇 |
1974年 | 16204篇 |
1973年 | 15481篇 |
1972年 | 14239篇 |
1971年 | 13125篇 |
1970年 | 11944篇 |
Objectives
To determine: (i) the behaviour change techniques used by a sample of Australian physiotherapists to promote non-treatment physical activity; and (ii) whether those behaviour change techniques are different to the techniques used to encourage adherence to rehabilitation exercises.Design
Cross-sectional survey.Method
An online self-report survey was advertised to private practice and outpatient physiotherapists treating patients with musculoskeletal conditions. The use of 50 behaviour change techniques were measured using five-point Likert-type scale questions.Results
Four-hundred and eighty-six physiotherapists responded to the survey, with 216 surveys fully completed. Most respondents (85.1%) promoted non-treatment physical activity often or all of the time. Respondents frequently used 29 behaviour change techniques to promote non-treatment physical activity or encourage adherence to rehabilitation exercises. A similar number of behaviour change techniques was frequently used to encourage adherence to rehabilitation exercises (n = 28) and promote non-treatment physical activity (n = 26). Half of the behaviour change techniques included in the survey were frequently used for both promoting non-treatment physical activity and encouraging adherence to rehabilitation exercises (n = 25). Graded tasks was the most, and punishment was the least, frequently reported technique used to promote non-treatment physical activity and encourage adherence to rehabilitation exercises.Conclusions
Respondents reported using similar behaviour change techniques to promote non-treatment physical activity and encourage adherence to rehabilitation exercises. The variability in behaviour change technique use suggests the behaviour the physiotherapist is promoting influences their behaviour change technique choice. Including the frequently-used behaviour change techniques in non-treatment physical activity promotion interventions might improve their efficacy. 相似文献Background
There are well-established relationships between health and homelessness, and shelters can facilitate the transmission of diseases and contribute to their prevention. Adequate environmental health conditions and hygiene behaviors in homeless shelters are fundamental to the health of their clients, a marginalized population. We report the status of environmental health conditions and hygiene behaviors in homeless shelters and associated health outcomes; interventions to improve these conditions, behaviors, and outcomes; and obstacles to improvement.Methods
PubMed, Web of Science, Scopus, and EBSCOhost were searched for peer-reviewed studies, and additional sources for grey literature. Studies were included if they reported primary data on one or more environmental health condition or hygiene behavior in homeless shelters.Results
Twenty-eight studies were included in the review. Insufficient ventilation systems, unhygienic bedding, and overcrowding were the most documented environmental health and hygiene deficiencies in homeless shelters, and tuberculosis infections and skin diseases were the most documented associated health outcomes among clients. Studies frequently recommended or described implementation of behavioral and administrative controls, ventilation system improvements, and ultraviolet germicidal irradiation fixtures.Discussion
Most studies addressed airborne transmission of tuberculosis and were conducted in high-income countries, revealing an imbalance in the literature. Insufficient resources and the transience of clients are barriers to improving hygiene behaviors and environmental conditions in homeless shelters. Further investment and research into ensuring adequate hygiene and environmental health in this setting can protect and promote the health and well-being of people experiencing homelessness. 相似文献Methods: Prospective cross-sectional study.
Results: Twenty-seven of 106 patients had positive PCR and/or GWC results on aqueous humor (AH) sampling and 15 of 27 (55.6%) were HIV-positive. Patients with non-anterior uveitis (NAU) were more likely to be HIV+ (p = 0.005). More than 1 possible pathogen was identified in 9 of 27 patients of whom 7 were HIV+. The final clinical diagnosis was discordant with AH findings in 9 of 27 cases. A positive EBV PCR result was associated with a discordant diagnosis (p = 0.001). All cases of herpetic anterior uveitis (42.9% HIV+) tested PCR-/GWC+ while all cases of herpetic NAU tested PCR+/GWC- (83.3% HIV+). All rubella virus cases were PCR+/GWC+.
Conclusion: PCR is useful to diagnose herpetic NAU in HIV+ patients while GWC is useful to diagnose herpetic anterior uveitis. 相似文献