1 Nephrology Division, University of São Paulo Medical School, São Paulo, Brazil; Nephrology and Dialysis Center, Oswaldo Cruz German Hospital, São Paulo, Brazil. Electronic address: precilmed61@yahoo.com.br.
2 Nephrology Division, São Paulo State Cancer Institute, University of São Paulo Medical School, São Paulo, Brazil.
3 Nephrology Discipline, Federal University of Vale do São Francisco, Petrolina, Brazil.
4 Department of Pathology, University of São Paulo Medical School, São Paulo, Brazil.
5 Genetic Department, Ribeirão Preto School of Medicine-São Paulo University, Ribeirão Preto, Brazil.
6 Division of Renal Pathology, Federal University of Maranhão, São Luiz, Brazil.
7 LIM 12, Division of Nephrology, University of São Paulo Medical School, São Paulo, Brazil.
8 Nephrology Division, University of São Paulo Medical School, São Paulo, Brazil.