?:authorAffiliation
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[\'University of Newcastle, School of Medicine and Public Health, Callaghan, NSW, Australia. Electronic address: susan.thomas@newcastle.edu.au.\', \'University of Newcastle, School of Medicine and Public Health, Callaghan, NSW, Australia; Hunter New England Local Health District, Population Health, Wallsend, NSW, Australia.\', \'Hunter New England Local Health District, Population Health, Wallsend, NSW, Australia.\', \'Hunter New England Local Health District, Child and Family Health, Maitland, NSW, Australia.\']
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