[1] Univ Ioannina, Med Sch, Dept Internal Med, Ioannina, Greece
[2] Hippokrateion Hosp, Cardiol Clin, Athens, Greece
[3] Natl & Kapodistrian Univ Athens, Med Sch, Dept Cardiol, Attikon Un, Athens, Greece
[4] Natl & Kapodistrian Univ Athens, Med Sch, Dept Pediat 2, Athens, Greece
[5] Metropolitan Hosp, Cardiometab Ctr, Lipid Clin, LA apheresis Unit, Athens, Greece
[6] Aristotle Univ Thessalonik, Med Sch, Propedeut Dept Internal Med 1, Thessaloniki, Greece
[7] 424 Gen Mil Training Hosp, Dept Internal Med, Thessaloniki, Greece
[8] Univ Gen Hosp Heraklion, Cardiol Clin, Iraklion, Greece
[9] Aristotle Univ Thessaloniki, Med Sch, Dept Internal Med 3, Thessaloniki, Greece
[10] Aristotle Univ Thessaloniki, Med Sch, Dept Internal Med, Hippokration, Thessaloniki, Greece
[11] Natl & Kapodistrian Univ, Sch Med, Propaedeut Dept Med 1, Athens, Greece