1. Centro Hospitalar de São João EPE Department of Internal Medicine Porto Portugal
2. Unidade de Investigaçao Cardiovascular‐UnIC Faculdade de Medicina Universidade do Porto Porto Portugal
3. Hospital CUF Porto Department of Internal Medicine Porto Portugal
4. Hospital Pedro Hispano Department of Internal Medicine Unidade Local de Saúde de Matosinhos Senhora da Hora Portugal
5. Emergency Department, Ben Taub mGeneral Hospital Baylor College of Medicine Houston Texas USA