1. Department of Surgery, Division of Vascular and Endovascular Surgery; Universidade Federal de São Paulo; São Paulo Brazil
2. Emergency Medicine; Universidade Federal de São Paulo; São Paulo Brazil
3. Rheumatology; Universidade de Santo Amaro; São Paulo Brazil
4. Division of Cardiology; Duke University Medical Center; Durham USA
5. Evidence-based Medicine; Cochrane Brazil; São Paulo Brazil