Associate Professor Carolyn Nickson is an epidemiologist specialising in the evaluation of breast cancer screening, diagnosis and treatment. She heads the Breast Cancer Policy and Evaluation stream at The Daffodil Centre (a new joint venture between Cancer Council NSW and the University of Sydney), and the ABACUS research group at the University of Melbourne. Her projects include leading the Australian Government funded ‘Breast ROSA’ project on behalf of Cancer Council Australia, which is exploring options for more risk-based approaches to breast cancer screening in the Australian setting through a combination of epidemiological studies, population modelling and policy and implementation activities.