1 Cardiovascular Department, "Ospedali Riuniti" and Postgraduate School of Cardiology, University of Trieste, Trieste, Italy; Isala Hartcentrum, Zwolle, the Netherlands. Electronic address: enrico.fabris@hotmail.it.
2 Isala Hartcentrum, Zwolle, the Netherlands; Higher Specialist Training in Cardiology, Royal College of Physicians of Ireland, Dublin, Ireland.