1. Marilia Medical School; Department of Evidence Based Health Actions; Avenida Monte Carmelo, 800 Bairro Fragata São Paulo Brazil 17519-030
2. Marilia Medical School; Evidence Based Health Actions and Thoracic Surgery; Avenida Monte Carmelo, 800 Bairro Fragata Marilia Sao Paulo Brazil 17519-030
3. Sao Paulo State University; Department of Surgery & Orthopedics; Estrada para Rubiao Jr Botucatu Sao Paulo Brazil 18618-970
4. São Paulo State University; Department of Biostatistics; Distrito de Rubião Junior s/n Botucatu São Paulo Brazil 18-618-970