1. Psychological Services Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
2. Audiological Medicine Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
3. Plastic and Reconstructive Surgery Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom
4. Ear, Nose and Throat Department, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom