Marco Marano1, Gianfranco Cirillo2. 1. Maria Rosaria Clinic - Hemodialysis Unit, via Colle San Bartolomeo, 50, Pompeii, Naples, 80045, Italy. marano965@gmail.com. 2. Maria Rosaria Clinic - Hemodialysis Unit, via Colle San Bartolomeo, 50, Pompeii, Naples, 80045, Italy. giangyciri@hotmail.it.