期刊论文详细信息
Health Promotion Perspectives
Approaches to Recruiting ‘Hard-To-Reach’ Populations into Re­search: A Review of the Literature
Abdolreza Shaghaghi1  Aziz Sheikh1  Raj S Bhopal1 
关键词: Hard-to-reach populations;    hidden populations;    time-location sampling;    timespace;   
DOI  :  
学科分类:农业科学(综合)
来源: Tabriz University of Medical Sciences
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