1. Institute of Microbiology & Virology, Lithuanian University of Health Sciences, Kaunas, LT-50162, Lithuania
2. Department of Laboratory Medicine, Lithuanian University of Health Sciences, Kaunas, LT-50161, Lithuania
3. Private Laboratory ‘Medicina practica’ Savanoriu pr. 137, Kaunas, LT-44146, Lithuania
4. Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, LT-50161, Lithuania