1 Department of Cardiology, Evangelismos General Hospital of Athens, Athens, Greece.
2 Department of Endocrinology "D. IKKOS", Diabetes Center, Center of Excellence for Rare Endocrine Diseases, Evangelismos General Hospital of Athens, Athens, Greece.
3 Department of Cardiology, Evangelismos General Hospital of Athens, Athens, Greece. Electronic address: atrikas@otenet.gr.