[1] Aristotle Univ Thessaloniki, Dept Pediat 1, Thessaloniki, Greece
[2] Catholic Univ Louvain, Clin Univ St Luc, Div Cardiol, Louvain, Belgium
[3] Catholic Univ Louvain, Inst Hlth & Soc IRSS, Louvain, Belgium
[4] Klinikum Wels Grieskirchen, Dept Cardiol, Wels, Austria
[5] Charite Univ Med Berlin, Inst Clin Pharmacol & Toxicol, Berlin, Germany
[6] Univ Milano Bicocca, Clin Med, Milan, Italy
[7] Univ Valencia, Dept Pediat, Valencia, Spain
[8] Inst Salud Carlos III, CIBER Fisiopatol Obesidad & Nutr, Madrid, Spain