1. IInd Clinic of Cardiology, Colegium Medicum of Nicolaus Copernicus University in Bydgoszcz, University Hospital nr 2 in Bydgoszcz, Poland
2. Department of Immunology, Collegium Medicum of Nicolaus Copernicus University (NCU) in Bydgoszcz, Poland
3. Department of Theoretical Foundations of Biomedical Sciences & Medical Informatics, Colegium Medicum of Nicolaus Copernicus University in Bydgoszcz, Poland