Authors
Patnarin Mahattanasakul
Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Chulalongkorn University,, Bangkok, Thailand
Veerachai Kerekhanjanarong
Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Chulalongkorn University,, Bangkok, Thailand
Porn-ake Apipan
The ENT Center of Excellence Rajavithi Hospital, Department of Medical Services, Ministry of Health,, Bangkok, Thailand