[1] Univ Fed Rio Grande do Sul, Hosp Clin Porto Alegre, Porto Alegre, RS, Brazil
[2] Univ Fed Ceara, Dept Med Clin, Programa Posgrad Ciencias Med, Fortaleza, CE, Brazil
[3] Hosp Univ Walter Cantidio, Fortaleza, CE, Brazil
[4] Hosp Geral Fortaleza, Fortaleza, CE, Brazil
[5] Santa Casa Misericordia Porto Alegre, Porto Alegre, RS, Brazil
[6] Hosp Rim, Fundacao Oswaldo Ramos, Sao Paulo, SP, Brazil
[7] Santa Casa Misericordia Juiz Fora, Juiz De Fora, MG, Brazil
[8] Hosp Santa Isabel, Blumenau, SC, Brazil
[9] Hosp Univ Onofre Lopes HOUL, Div Nefrol & Transplante Renal, Natal, RN, Brazil
[10] Hosp Base, Escola Med FAMERP, Sao Jose Do Rio Preto, SP, Brazil
[11] Hosp Santa Marcelina, Sao Paulo, SP, Brazil
[12] Hosp Sao Lucas PUCRS, Porto Alegre, RS, Brazil
[13] Hosp Municipal Sao Jose HMSJ, Joinville, SC, Brazil
[14] Univ Fed Sao Paulo, Div Nefrol, Dept Med, Sao Paulo, SP, Brazil