[1] Univ Notre Dame Australia, Sch Med, 160 Oxford St, Darlinghurst, NSW, Australia
[2] Westmead Hosp, Dept Otolaryngol Head & Neck Surg, Westmead, NSW, Australia
[3] Royal North Shore Hosp, Kolling Deafness Res Ctr, Sydney, NSW, Australia
[4] Macquarie Univ, Sydney, NSW, Australia
[5] Univ Sydney, Sydney Med Sch, Discipline Surg, Sydney, NSW, Australia
[6] SEES Res Grp, Sydney, NSW, Australia
[7] Macquarie Univ, Fac Med & Hlth Sci, Dept Otolaryngol Head & Neck Surg, Sydney, NSW, Australia