1. Cancer Epidemiology and Health Services Research Group; Centre for Public Health, School of Medicine Dentistry and Biomedical Sciences; Queen's University Belfast; Belfast Northern Ireland
2. Department of Cellular and Molecular Pathology; Antrim Area Hospital, Northern Health and Social Care Trust; Antrim Northern Ireland
3. Northern Ireland Cancer Registry; Centre for Public Health, School of Medicine; Dentistry and Biomedical Sciences, Queen's University Belfast; Belfast Northern Ireland