1. Second Propedeutic Department of Internal Medicine, Medical School, Aristotle; University of Thessaloniki, Hippocration Hospital, Thessaloniki, Greece
2. Lipid and Atherosclerosis Unit, Department of Internal Medicine, IMIBIC/Reina Sofia University Hospital/ University of Cordoba, Cordoba, Spain; CIBER Fisiopatologia Obesidad y Nutricion (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
3. Dept. of Clinical Biochemistry (Vascular Disease Prevention Clinics), Royal Free Hospital Campus, University College London Medical School, University College London (UCL), Pond Street, London NW3 2QG, United Kingdom