Mapping EQ-5D utilities to GBD 2010 and GBD 2013 disability weights: results of two pilot studies in Belgium., C de Noordhout, Maertens, Devleesschauwer Brecht, Gielens L, Plasmans M H. D., Haagsma J A., and Speybroeck N , Arch Public Health, 2017, Volume 75, p.6, (2017)