1 Cardiology Unit, Department of Excellence of Sciences for Health Promotion and Mothernal-Child Care, Internal Medicine and Specialities (ProMISE), University Hospital P. Giaccone, "G. D'Alessandro", Palermo, Italy. Electronic address: girolamomanno@hotmail.it.
2 Cardiology Unit, Department of Excellence of Sciences for Health Promotion and Mothernal-Child Care, Internal Medicine and Specialities (ProMISE), University Hospital P. Giaccone, "G. D'Alessandro", Palermo, Italy.