[1] Univ Western Australia, Ear Sci Ctr, Nedlands, WA, Australia
[2] Ear Sci Inst Australia, Nedlands, WA, Australia
[3] Minist Educ Brazil, CAPES Fdn, Brasilia, DF, Brazil
[4] Univ Western Australia, Telethon Kids Inst, Crawley, Australia
[5] Univ Fed Sao Paulo, Paulista Sch Med, Dept Emergency Med & Evidence Based Med, Sao Paulo, Brazil
[6] HiTalk Comunicacao & Consultoria Ltda, Sao Paulo, Brazil
[7] Sir Charles Gairdner Hosp, Dept Otolaryngol Head & Neck Skull Base Surg, Nedlands, WA, Australia
[8] Univ Notre Dame, Sch Med, Fremantle, WA, Australia
[9] Univ Pretoria, Dept Speech Language Pathol & Audiol, Pretoria, South Africa