[1] Univ Hosp A Coruna, Nephrol Dept, Xubias 84, La Coruna 15006, Spain
[2] Univ Hosp La Fe, Pharm Dept, Valencia, Spain
[3] Univ Hosp Mar, Nephrol Dept, Barcelona, Spain
[4] Univ Hosp Son Espases, Nephrol Dept, Palma De Mallorca, Spain
[5] Hosp Miguel Servet, Nephrol Dept, Zaragoza, Spain
[6] Univ Hosp Germans Trias & Pujol, Nephrol Dept, Badalona, Spain
[7] Univ Autonoma Barcelona, Univ Hosp Vall dHebron, Dept Med, Nephrol Dept, Barcelona, Spain
[8] Univ Hosp Doce Octubre, Nephrol Dept, Madrid, Spain
[9] Univ Hosp Ramon Y Cajal, Nephrol Dept, Madrid, Spain
[10] Univ Hosp Clin Valladolid, Nephrol Dept, Valladolid, Spain
[11] Univ Hosp Clin San Carlos, Nephrol Dept, Madrid, Spain
[12] Univ Hosp Virgen Rocio, Nephrol Dept, Seville, Spain
[13] Univ Hosp Virgen Nieves, Nephrol Dept, Granada, Spain
[14] Univ Hosp Bellvitge, Nephrol Dept, Lhospitalet De Llobregat, Spain
[15] Fdn Jimenez Diaz, Nephrol Dept, Madrid, Spain
[16] Univ Malaga, Univ Hosp Reg, Nephrol Dept, REDinREN RED16 0009 0006,IBIMA, Malaga, Spain