[1] Nicolae Testemitanu State Univ Med & Pharm, Dept Internal Med, Kishinev, Moldova
[2] Phthisiopneumol Inst Chiril Draganiuc, Nonspecif Resp Dis Lab, Kishinev, Moldova
[3] Timofei Mosneaga Clin Republican Hosp, Congenital Cardiac Dis Dept, Kishinev, Moldova