1. Department of Otorhinolaryngology, Head & Neck Surgery, Tan Tock Seng Hospital, Singapore, Singapore;
2. Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore;
3. Department of Otolaryngology, Audiology Unit, Tan Tock Seng Hospital, Singapore, Singapore;
4. Clinical Research Unit, Clinical Research & Innovation Office, Tan Tock Seng Hospital, Singapore