1. Department of Anaesthesiology and Pain Medicine, Medical Virtual Reality Research Group, Seoul National University College of Medicine, Seoul, Korea
2. Department of Anaesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
3. Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea
4. Department of Psychiatry, Medical Virtual Reality Research Group, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea
5. Department of Ophthalmology, Medical Virtual Reality Research Group, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea
6. Department of Obstetrics and Gynaecology, Medical Virtual Reality Research Group, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea