1. University of Canterbury–Te Whare Wānanga o Waitaha, School of Health Sciences, Christchurch, New Zealand
2. Primary Care Clinical Unit, The University of Queensland School of Clinical Medicine, Brisbane, Queensland, Australia
3. Atkins Holm Majurey, Auckland, New Zealand
4. Institute of Environmental Science and Research, Christchurch, New Zealand
5. Community Dental Service, Canterbury District Health Board, Christchurch, New Zealand