[1] Univ Otago, Dunedin Sch Med, Dept Prevent & Social Med, Dunedin, New Zealand
[2] HammondCare, Sydney, NSW, Australia
[3] Univ Sydney, Sydney, NSW, Australia
[4] Univ Otago, Dunedin Sch Med, Dept Gen Practice & Rural Hlth, Dunedin, New Zealand
[5] Dunedin Sch Med, Div Hlth Sci, Dunedin, New Zealand
[6] Maori Hlth Workforce Dev Unit, Dunedin, New Zealand