1 Irfan Mohamad MD, MMed (ORL-HNS) Department of Otorhinolaryngology- Head & Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150 Kota Bharu, Kelantan, Malaysia Email : irfankb@usm.my.
2 Rohaizam Jaafar MD Department of Otorhinolaryngology- Head & Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150 Kota Bharu, Kelantan, Malaysia.