[1] Canc Australia, Sydney, NSW, Australia
[2] Univ S Australia, Sch Populat Hlth, Adelaide, SA 5001, Australia
[3] Breast Surg Australia & New Zealand, Qual Audit Steering Comm, Sydney, NSW, Australia
[4] Royal Adelaide Hosp, Breast Endocrine & Surg Oncol Unit, Adelaide, SA 5000, Australia
[5] Univ Adelaide, Adelaide, SA, Australia
[6] Univ Auckland, Fac Med & Hlth Sci, Waikato Clin Sch, Hamilton, New Zealand