1. Department of Medicine, Nephrology Division, Universidade Federal de São Paulo, Escola Paulista de Medicina, Brazil
2. Department of Basic Nursing, Nursing School, Universidade Federal de Minas Gerais, Brazil
3. Heart Institute, Medical School of University of São Paulo, Brazil
4. Department of Biophysics, Universidade Federal de São Paulo, Brazil
5. Department of Biophysics, Universidade Federal de Minas Gerais, Brazil