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   31752篇
  免费   1795篇
  国内免费   285篇
耳鼻咽喉   288篇
儿科学   596篇
妇产科学   625篇
基础医学   3350篇
口腔科学   772篇
临床医学   2281篇
内科学   9252篇
皮肤病学   437篇
神经病学   2718篇
特种医学   1159篇
外科学   5726篇
综合类   75篇
一般理论   6篇
预防医学   1292篇
眼科学   597篇
药学   1868篇
中国医学   64篇
肿瘤学   2726篇
  2024年   31篇
  2023年   319篇
  2022年   686篇
  2021年   1117篇
  2020年   643篇
  2019年   899篇
  2018年   1101篇
  2017年   781篇
  2016年   955篇
  2015年   997篇
  2014年   1355篇
  2013年   1666篇
  2012年   2524篇
  2011年   2418篇
  2010年   1399篇
  2009年   1338篇
  2008年   2127篇
  2007年   2087篇
  2006年   1948篇
  2005年   1968篇
  2004年   1849篇
  2003年   1593篇
  2002年   1417篇
  2001年   149篇
  2000年   144篇
  1999年   194篇
  1998年   241篇
  1997年   190篇
  1996年   189篇
  1995年   191篇
  1994年   153篇
  1993年   138篇
  1992年   114篇
  1991年   74篇
  1990年   81篇
  1989年   55篇
  1988年   50篇
  1987年   52篇
  1986年   52篇
  1985年   43篇
  1984年   53篇
  1983年   48篇
  1982年   68篇
  1981年   37篇
  1980年   34篇
  1979年   23篇
  1977年   15篇
  1976年   17篇
  1975年   18篇
  1974年   16篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
International Journal of Clinical Oncology - Immune-checkpoint inhibitors (ICIs) are standard treatments for metastatic non-small cell lung cancer (NSCLC). Patients with poor performance status...  相似文献   
2.
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