1. Department of Internal Medicine; Federal University of Rio Grande do Sul; Rio Grande do Sul Brazil
2. Department of Internal Medicine; Hospital de Clinicas de Porto Alegre; Rio Grande do Sul Brazil
3. Department of Neurology; Hospital de Clinicas de Porto Alegre; Rio Grande do Sul Brazil
4. Department of Cardiology; Hospital de Clinicas de Porto Alegre; Rio Grande do Sul Brazil
5. Department of Emergency Medicine; Hospital de Clinicas de Porto Alegre; Rio Grande do Sul Brazil
6. Department of Medical Informatics; Hospital de Clinicas de Porto Alegre; Rio Grande do Sul Brazil