全文获取类型
收费全文 | 43919篇 |
免费 | 3148篇 |
国内免费 | 152篇 |
专业分类
耳鼻咽喉 | 464篇 |
儿科学 | 1437篇 |
妇产科学 | 1207篇 |
基础医学 | 6073篇 |
口腔科学 | 501篇 |
临床医学 | 6342篇 |
内科学 | 8569篇 |
皮肤病学 | 714篇 |
神经病学 | 4418篇 |
特种医学 | 830篇 |
外国民族医学 | 1篇 |
外科学 | 3663篇 |
综合类 | 765篇 |
一般理论 | 42篇 |
预防医学 | 5048篇 |
眼科学 | 885篇 |
药学 | 3012篇 |
中国医学 | 80篇 |
肿瘤学 | 3168篇 |
出版年
2023年 | 224篇 |
2022年 | 477篇 |
2021年 | 871篇 |
2020年 | 484篇 |
2019年 | 810篇 |
2018年 | 951篇 |
2017年 | 731篇 |
2016年 | 817篇 |
2015年 | 993篇 |
2014年 | 1339篇 |
2013年 | 2021篇 |
2012年 | 3059篇 |
2011年 | 3222篇 |
2010年 | 1628篇 |
2009年 | 1584篇 |
2008年 | 2888篇 |
2007年 | 3124篇 |
2006年 | 3192篇 |
2005年 | 3149篇 |
2004年 | 3092篇 |
2003年 | 2880篇 |
2002年 | 2688篇 |
2001年 | 400篇 |
2000年 | 305篇 |
1999年 | 408篇 |
1998年 | 494篇 |
1997年 | 428篇 |
1996年 | 388篇 |
1995年 | 369篇 |
1994年 | 274篇 |
1993年 | 299篇 |
1992年 | 233篇 |
1991年 | 226篇 |
1990年 | 209篇 |
1989年 | 200篇 |
1988年 | 203篇 |
1987年 | 167篇 |
1986年 | 141篇 |
1985年 | 176篇 |
1984年 | 204篇 |
1983年 | 194篇 |
1982年 | 242篇 |
1981年 | 181篇 |
1980年 | 185篇 |
1979年 | 116篇 |
1978年 | 107篇 |
1977年 | 115篇 |
1976年 | 87篇 |
1975年 | 74篇 |
1974年 | 80篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Karen Kayser Ariel Washington Lesley M. Harris Barbara Head 《Journal of psychosocial oncology》2021,39(1):17-34
Abstract
Purpose
Financial hardship can be a major cause of distress among persons with cancer, resulting in chronic stress and impacting physical and emotional health. This paper provides an analysis of the lived experience of cancer patients’ financial hardship from diagnosis to post-treatment. 相似文献2.
3.
4.
5.
Few studies have examined the effects of parental incarceration (PI) on outcomes above and beyond other risk and adverse childhood experiences (ACEs). The objectives of this study were to (1) the associations between PI and mental health problems (attention, externalizing, internalizing, and total behavioral problems) and (2) the mediating role of current socioeconomic status and cumulative ACEs. An observational and cross-sectional design was employed. Analyses included hierarchical multivariable linear regression modeling. The analytic sample included 613 adolescents (11–17?years). On average, youth exposed to PI experienced three times as many ACEs compared with youth unexposed. Youth exposed to PI were more likely to have behavioral problems than their unexposed peers. The main effect for all models was attenuated by current economic hardship as well as exposure to increasing numbers of ACEs. Exposure to PI can be viewed as a marker of accumulative risk for intervention since youth impacted by PI are more likely to experience behavioral difficulties and associated adverse childhood experiences. Due to the associated adversity that impact youth exposed to PI, mental health providers need to be able to identify and screen for symptoms associated with trauma. 相似文献
6.
Maria Russo Claudio Lucifora Francesco Pucciarelli Bruno Piccoli 《La Medicina del lavoro》2019,110(2):115
Background:Workplace hazards are a significant source of health impairment for workers and of financial losses for firms. EU directives on workers’ health and safety standards significantly contributed to reduce reported occupational injuries, yet the incidence and prevalence of work-related mental illness is still very high.Objectives:We investigated the association between work-related hazards and individuals’ perceived mental health. We reviewed the existing evidence on the channels through which task-related factors, adverse agents and psychosocial factors are expected to affect workers’ health, with specific regard to mental health.Methods:We used data from the fifth wave of the European Working Conditions Survey, covering over 40,000 face-to-face interviews with workers in 34 countries, which includes information on socio-demographic characteristics, firms and jobs attributes, employment status, as well as working conditions and health status. We carried out an empirical analysis with multivariate regression models in order to estimate the relationship between workers’ mental health problems and workplace risk factors.Results:21,020 interviews were used in the multivariate analysis. We found strong correlations between hazards and various indicators of mental health. Among hazardous agents, low temperatures (β=0.0287) and contact with infectious materials (β=0.0394) were positively associated with mental health outcomes. Among task/sequence-related factors, tiring or painful positions (β=0.0713), repetitive hand/arm movements (β=0.0255), working with VDUs (β=0.0301), repetitive tasks <10 min (β=0.0859) and working in evenings (β=0.00754) were positively associated with mental health. Various psychosocial risk factors related to both the content of the job (for example, frequent disruptive interruptions: β=0.219, working in free time: β=0.0759, poor work-life balance: β=0.228) as well as the job context (for example, bad employment prospects: β=0.177, low decisional autonomy: β=0.245, bad social relations: β=0.186, workplace violence: β=0.411) were positively associated with mental health. The main results of the decomposition show that an important contribution to workers’ overall mental distress at work is associated with psychosocial risk factors (up to 60% for depression/anxiety symptoms and sleep disorders), while the contribution of somatic factors is on average lower (up to 20% for overall fatigue).Conclusions:We argue that action is needed to improve workers’ mental well-being, and reduce the economic costs for both the national health system and employers. Regulations and traditional economic measures are unlikely to prove successful in providing adequate standards of primary and secondary preventive measures in the work place without an appropriate and reliable Risk Assessment Procedure.Key words: Work hazards, risk assessment, job content, mental health 相似文献
7.
8.
Judith Brock Andreas Schmid Thomas Karrasch Petra Pfefferle Jutta Schlegel Inga Busse Annette Hauenschild Barbara Schmidt Maria Koukou Efthymia Arapogianni Andreas Schultz Miriam Thomalla Secil Akinci Johannes Kruse Winfried Padberg Andreas Schffler Jens Albrecht 《Clinical endocrinology》2019,91(3):400-410
9.