Autor:	Harris JM Jr; At the time of writing, John M. Harris Jr was with the Office of Continuing Medical Education, College of Medicine, University of Arizona, Tucson.
Jazyk:	angličtina
Zdroj:	American journal of public health [Am J Public Health] 2014 Mar; Vol. 104 (3), pp. 417. Date of Electronic Publication: 2014 Jan 16.
DOI:	10.2105/AJPH.2013.301739
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu Plný text ve formátu PDF