[1] Univ Naples 2, Dipartimento Gerontol, Cattedra Nefrol, IT-80131 Naples, Italy
[2] Univ Naples 2, Chair Biostat, IT-80131 Naples, Italy
[3] Univ Federico II, Div Nephrol, Naples, Italy
[4] County Hosp, Div Nephrol, Nola, Italy
[5] United Hosp, Renal Hypertens & Transplant Unit, Div Nephrol, Reggio Di Calabria, Italy
[6] CNR IBIM, Div Nephrol, Reggio Di Calabria, Italy
[7] Univ Naples 2, Med Sch, Naples, Italy
[8] Napoli ASL NA 1, Naples, Italy
[9] Univ Naples Federico II, Med Sch, Naples, Italy
[10] Nola Hosp, Nola, Italy
[11] Solofra Hosp, Solofra, Italy
[12] Sapri Hosp, Sapri, Italy
[13] Benevento Hosp, Benevento, Italy
[14] Verona Univ, Med Sch, Verona, Italy
[15] Pisa Univ, Med Sch, Pisa, Italy
[16] Chieti Univ, Med Sch, Chieti, Italy
[17] Matera Hosp, Matera, Italy
[18] Putignano Hosp, Putignano, Italy
[19] Molfetta Hosp, Molfetta, Italy
[20] Manduria Hosp, Manduria, Italy
[21] Bari Di Venere Hosp, Bari, Italy
[22] Bari Univ, Med Sch, Bari, Italy
[23] Bari S Rita Hosp, Bari, Italy
[24] Galatina Hosp, Galatina, Italy
[25] Taranto Hosp, Taranto, Italy
[26] Martina Franca Hosp, Martina Franca, Italy
[27] Catanzaro Univ, Med Sch, Catanzaro, Italy
[28] Reggio Calabria CNR, Reggio Di Calabria, Italy
[29] Messina Hosp, Messina, Italy
[30] Univ Messina, Med Sch, Messina, Italy
[31] Catania Univ, Med Sch, Catania, Italy