@base . a , ; "Public health frontier (Online)" . a ; "2227-4561" ; . a , , ; , , ; "Public health frontier." ; ; ; ; "2227-4561" ; ; ; "2227-4561" ; ; "2227-4561" ; "Public health frontier." , "Public health frontier (Online)" ; "https://web.archive.org/web/20150529134212/http://www.jphf.org" , "http://www.jphf.org/Issue.aspx?Abstr=false" . . a ; ; "20210207015400.0"^^ ; ; . a . a ; "2227-4561" ; .