1. Audiology Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
2. Department of Otorhinolaryngology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
3. Demant Malaysia Sdn Bhd, Plaza Mont Kiara, Mont Kiara, Kuala Lumpur, Malaysia.