1. Department of Surgical Oncology, Barretos Cancer Hospital, Barretos, Brazil.
2. Department of Pathology, Barretos Cancer Hospital, Barretos, Brazil.
3. Infectious Diseases, Barretos Cancer Hospital, Barretos, Brazil.
4. Department of Gynecology, Obstetrics and Mastology, Botucatu School of Medicine, Botucatu, Brazil.