1. Laboratory of Genetics and Molecular Cardiology, Heart Institute (InCor), University of Sao Paulo Medical School, Sao Paulo, Brazil;
2. Department of Physiology, Espirito Santo Federal University, Espirito Santo, Brazil; and
3. Departamento de Clínica Médica, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Sao Paulo, Brazil