1 Brazilian Clinical Research Institute, Sao Paulo, Brazil.
2 Instituto do Coracao, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Brazil.
3 Fundación Cardiovascular de Colombia, Floridablanca, Colombia.
4 Instituto Nacional de Cardiología Ignacio Chávez, Mexico City, Mexico.
5 INECO Neurociencias Oroño, Rosario, Argentina.
6 Cardiología Clínica e Intervencionista Tarascos, Guadalajara, Mexico.
7 Brazilian Clinical Research Institute, Sao Paulo, Brazil; Duke University School of Medicine, Durham, North Carolina, USA. Electronic address: renato.lopes@duke.edu.