1. Third Department of Cardiology; Silesian Centre for Heart Disease; SMDZ in Zabrze; Medical University of Silesia in Katowice; Zabrze Poland
2. Department of Nutrition-Related Disease Prevention; School of Public Health in Bytom; Medical University of Silesia in Katowice; Bytom Poland
3. Department of Endocrinology; County Hospital; Piekary Slaskie Poland