[1] Miulli Gen Hosp, Clin Res Branch, Div Nephrol, Acquaviva Della Fonti, Italy
[2] Associaz Nefrol Gabriella Sebastio, Martina Franca, Italy
[3] Dialysis Ctr SM2, Potenza, Italy
[4] Res Hosp Casa Sollievo Sofferenza, Dept Nephrol & Dialysis, San Giovanni Rotondo, Italy