1. Botucatu Medical School, Universidade Estadual Paulista (UNESP); Department of Anaesthesiology; Distrito de Rubião Júnior, s/n Botucatu, São Paulo Brazil 18603-970
2. Academic Medical Center, University of Amsterdam; Department of Clinical Epidemiology, Biostatistics and Bioinformatics; P.O. Box 22700 Amsterdam Netherlands 1100 DE
3. Post Graduate Institute of Medical Education and Research; Department of Pediatrics; Chandigarh India 160012
4. Botucatu Medical School, UNESP - Univ Estadual Paulista; Department of Tropical Diseases and Imaging Diagnosis; Av. Prof. Montenegro, s/n Distrito de Rubiao Jr Botucatu Sao Paulo Brazil 18618-970
5. Universidade Federal de São Paulo; Department of Infectology; São Paulo São Paulo Brazil
6. McMaster University; Department of Surgery; Hamilton ON Canada
7. Universidade Estadual Paulista (UNESP); Department of Orthopaedics; Distrito de Rubião Júnior, s/n Botucatu São Paulo Brazil 18618-970