[1] Univ Pecs, Med Sch, Dept Publ Hlth Med, Sziget Ut 12, H-7624 Pecs, Hungary
[2] Bethesda Childrens Hosp, Budapest, Hungary
[3] Semmelweis Univ, Inst Prevent Med & Publ Hlth, Fac Med, Budapest, Hungary
[4] Semmelweis Univ, Ctr Hlth Technol Assessment, Budapest, Hungary
[5] Syreon Res Inst, Budapest, Hungary
[6] HUN REN Ctr Social Sci, Budapest, Hungary
[7] Eotvos Lorand Univ, Fac Social Sci, Dept Stat, Budapest, Hungary