1 Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland; Club of Young Hypertensiologists, Polish Society of Hypertension, Gdansk, Poland.
2 Department of Preventive Cardiology and Lipidology, Medical University of Lodz (MUL), Poland; Cardiovascular Research Centre, University of Zielona Góra, Poland; Department of Cardiology and Adult Congenital Heart Diseases, Polish Mother's Memorial Hospital Research Institute (PMMHRI), Łódź, Poland. Electronic address: maciej.banach@umed.lodz.pl.