Key points are not available for this paper at this time.
U.O. di Cardiologia, Ospedale di Conegliano, Conegliano, Italy Correspondence and requests for reprints to Pietro Delise, U.O. di Cardiologia, Ospedale di Conegliano, Conegliano, 31015, Italy Tel: +39 0438 663406; e-mail: email protected
Delise et al. (Sat,) studied this question.