1. Auckland District Health Board (ADHB). Auckland Breast Cancer Register,2015
2. Statistics New Zealand. Subnational population estimates by age and sex, at June 1996, 2001, 2006-16 (2017 boundary). Statistics New Zealand. 2017.
3. Design and analysis of randomized clinical trials requiring prolonged observation of each patient. II. Analysis and examples;Peto;Br. J. Cancer,1977
4. Statistics With Confidence: Confidence Intervals and Statistical Guidelines;Altman,2000
5. StataCorp, Stata Statistical Software: Release 14. Stata Corporation,2015