[1] Victor Babes Univ Med & Pharm, Dept Funct Sci, Timisoara 300173, Romania
[2] Victor Babes Univ Med & Pharm, Ctr Translat Res & Syst Med, Timisoara 300173, Romania
[3] Univ Valparaiso, Inst Stat, Valparaiso 234000, Chile
[4] Victor Babes Univ Med & Pharm, Dept Internal Med 2, Timisoara 300723, Romania
[5] Johannes Kepler Univ Linz, Dept Appl Stat, A-4040 Linz, Austria
[6] Johannes Kepler Univ Linz, Linz Inst Technol, A-4040 Linz, Austria