1. Division of Facial Plastic Reconstructive, Department of Otorhinolaryngology—Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
2. Division of Larynx Pharynx, Department of Otorhinolaryngology—Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
3. Department of Otorhinolaryngology—Head and Neck Surgery, Faculty of Medicine, Dr. Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia