1The Daffodil Centre, The University of Sydney, a joint venture with Cancer Council NSW, Sydney, New South Wales, Australia
2Curtin School of Population Health, Curtin University, Perth, Western Australia, Australia
3BreastScreen WA, Perth, Western Australia, Australia
4Dana-Farber Cancer Institute, Boston, MA, USA
5Harvard Medical School, Boston, MA, USA
6Sydney School of Public Health, Faculty of Medicine and Health, The University of Sydney, Camperdown, New South Wales, Australia