1. Department of Preventative Medicine, Faculty of Medicine FMUSP, University of Sao Paulo, Sao Paulo, SP, Brazil
2. Department of Biostatistics, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
3. Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
4. Department of Radiation Medicine and Pathology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
5. Department of Otolaryngology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
6. Department of Nutrition Therapy, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
7. Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada