1. Division of Molecular Pathology, Netherlands Cancer Institute, Amsterdam, Netherlands
2. Division of Clinical Research and Technological Development, Brazilian National Cancer Institute, Rio de Janeiro, RJ, Brazil
3. Department of Surgery, Galeão Air Force Hospital, Rio de Janeiro, RJ, Brazil
4. Department of Clinical Oncology , Galeão Air Force Hospital, Rio de Janeiro, RJ, Brazil
5. Division of Abdominal-Pelvic Surgery, Brazilian National Cancer Institute, Rio de Janeiro, RJ, Brazil