aUniversity Hospital Center Zagreb, Department of Internal Medicine, Division of Metabolic Diseases

bZagreb School of Medicine, University of Zagreb, Zagreb, Croatia

cDepartment of Cardiology and Congenital Diseases of Adults, Polish Mother's Memorial Hospital Research Institute

dDepartment of Preventive Cardiology and Lipidology, Medical University of Lodz (MUL), Lodz, Poland

eCiccarone Center for the Prevention of Cardiovascular Disease, Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA

Correspondence to Prof. Maciej Banach, MD, PhD, FNLA, FAHA, FESC, FASA, Head, Department of Preventive Cardiology and Lipidology, Medical University of Lodz (MUL), Rzgowska 281/289, 93–338 Lodz, Poland. Tel: +48 42 639 37 71; fax: +48 42 639 37 71; e-mail: [email protected]