[1] Semmelweis Univ, Epidemiol & Surveillance Ctr, H-1085 Budapest, Hungary
[2] Sapientia Hungarian Univ Transylvania, Fac Econ Sociohuman Sci & Engn, Cluj Napoca 400112, Romania
[3] Corvinus Univ Budapest, Inst Dev Enterprises, H-1093 Budapest, Hungary
[4] Univ Miskolc, Dept Basic Hlth Sci & Hlth Care Management, H-3515 Miskolc, Hungary
[5] Semmelweis Univ, Dept Publ Hlth, H-1085 Budapest, Hungary
[6] Syreon Res Romania, Targu Mures 54004, Romania
[7] George Emil Palade Univ Med Pharm Sci & Technol, Targu Mures 540139, Romania