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   34349篇
  免费   2894篇
  国内免费   274篇
耳鼻咽喉   398篇
儿科学   568篇
妇产科学   585篇
基础医学   2864篇
口腔科学   7186篇
临床医学   2100篇
内科学   8208篇
皮肤病学   418篇
神经病学   2446篇
特种医学   1086篇
外科学   5655篇
综合类   54篇
一般理论   5篇
预防医学   1167篇
眼科学   534篇
药学   1638篇
中国医学   57篇
肿瘤学   2548篇
  2024年   57篇
  2023年   631篇
  2022年   610篇
  2021年   1048篇
  2020年   687篇
  2019年   854篇
  2018年   1216篇
  2017年   1044篇
  2016年   1230篇
  2015年   1327篇
  2014年   1657篇
  2013年   1925篇
  2012年   2500篇
  2011年   2385篇
  2010年   1586篇
  2009年   1727篇
  2008年   2095篇
  2007年   1997篇
  2006年   1881篇
  2005年   1832篇
  2004年   1722篇
  2003年   1544篇
  2002年   1365篇
  2001年   308篇
  2000年   279篇
  1999年   337篇
  1998年   439篇
  1997年   368篇
  1996年   352篇
  1995年   326篇
  1994年   296篇
  1993年   241篇
  1992年   230篇
  1991年   139篇
  1990年   155篇
  1989年   100篇
  1988年   123篇
  1987年   112篇
  1986年   79篇
  1985年   96篇
  1984年   93篇
  1983年   89篇
  1982年   100篇
  1981年   61篇
  1980年   35篇
  1979年   24篇
  1978年   23篇
  1976年   22篇
  1975年   23篇
  1974年   23篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
The Yakima Valley Farm Workers Clinic (YVFWC) is one of the largest community health centers in the country with clinics throughout south-central Washington and northern Oregon. Its dental program consists of 14 dental clinics providing general and specialty services to the low-income populations it serves. Modeling itself after the YVFWC medical managed care program; the Dental program recently added value-based metrics to its dental practice after Oregon offered a value-based dental reimbursement plan in 2019. This is the first-step YVFWC's dental program that has taken to prepare for value-based reimbursement and transform its dental practice in order to reduce the disease burden in its patient population. The purpose of this article is to describe the processes YVFWC undertook to prepare itself for the new reimbursement model, which included the development of metrics, a metric validation process, a clinical dashboard, and a method for improving metrics. It also outlines its medical/dental integration improvement brought about by embedding hygienists into the medical primary care teams.  相似文献   
3.
Graefe's Archive for Clinical and Experimental Ophthalmology - To estimate the impact of delayed care during the coronavirus disease 2019 (COVID-19) pandemic on the outcomes of patients with...  相似文献   
4.
5.
6.
7.
8.
9.
10.
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   
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