[1] Univ New England, Fac Med & Hlth, Sch Hlth, Armidale, NSW, Australia
[2] Univ Sydney, Fac Med & Hlth, Susan Wakil Sch Nursing & Midwifery, Sydney, NSW, Australia
[3] Univ Technol Sydney, Fac Hlth, Sch Publ Hlth, Sydney, NSW, Australia
[4] Walhallow Aboriginal Hlth Serv, Quirindi, NSW, Australia
[5] Armajun Hlth Serv Aboriginal Corp, Inverell, NSW, Australia
[6] Western Sydney Local Hlth Dist, Aboriginal Maternal & Infant Hlth Serv, Mt Druitt, NSW, Australia