1. Reid P Robson B Hauora: Māori Standards of Health IV: A Study of the Years 2000-2005 2005
2. Ministry of Health https://www.health.govt.nz/our-work/populations/maori-health/tatau-kahukura-maori-health-statistics
3. Ethnic differences in acute hospitalisations for otitis media and elective hospitalisations for ventilation tubes in New Zealand children aged 0-14 years;McCallum;N. Z. Med. J.,2015
4. Vaccination to prevent otitis media in New Zealand;Walls;N. Z. Med. J.,2011
5. Plain language summary: otitis media with effusion;O'Connor;Otolaryngol. Head Neck Surg.,2016