Mihret, Wude; Brusletto, Berit Sletbakk; Øvstebø, Reidun; Siebke, Anne-Marie; Norheim, Gunnstein; Merid, Yared; Kassu, Afework; Abebe, Workeabeba; Ayele, Samuel; Silamsaw, Mezgebu; Yamuah, Lawrence; Aseffa, Abraham; Petros, Beyene; Caugant, Dominique A; Brandtzaeg, Petter (Peer reviewed; Journal article, 2019)