[1] Safarik Univ, Univ Hosp, Fac Med, Dept Dermatovenerol, Kosice 04001, Slovakia
[2] Safarik Univ, Fac Med, Dept Hlth Psychol & Res Methodol, Kosice 04001, Slovakia
[3] Palacky Univ Olomouc, Olomouc Univ, Social Hlth Inst, Olomouc 77900, Czech Republic
[4] Safarik Univ, Fac Med, Dept Publ Hlth & Hyg, Kosice 04001, Slovakia