1. Cancer Surveillance Branch, International Agency for Research on Cancer, Lyon
2. Department of Medical Oncology, Hospital Clinico San Carlos, IdISSC, Calle Profesor Martín Lagos, Madrid, Spain
3. Velindre Cancer Centre, Cardiff, Wales, United Kingdom
4. Belgian Cancer Registry, Brussels, Belgium
5. Registro Nacional de Cancer, Montevideo, Uruguay
6. Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
7. Ramsay Sime Darby Health Care, Kuala Lumpur, Malaysia
8. Institute of Human Virology Nigeria, Abuja, FCT, Nigeria