1. Postgraduate Studies Program in Cardiology, School of Medicine, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos 2600, 90035-003 Porto Alegre, RS, Brazil
2. Postgraduate Program of Collective Health, Universidade do Vale do Rio dos Sinos, São Leopoldo, RS, Brazil
3. Division of Cardiology, Hospital de Clinicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
4. Division of Pharmacoepidemiology and Pharmacoeconomics, Brigham and Women’s Hospital, Harvard School of Medicine, Harvard University, Boston, MA, USA
5. Postgraduate Studies Program in Epidemiology, School of Medicine, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos 2600, 90035-003 Porto Alegre, RS, Brazil