《英文msh词典》Intervention Studies
[主题词] Intervention Studies
[入口词] Intervention Study
[入口词] Studies,Intervention
[入口词] Study,Intervention
[中文释义] 干预性研究
[英文释义] Epidemiologic investigations designed to test a hypothesized cause-effect relation by modifying the supposed causal factor(s) in the study population.