1. Department of Otorhinolaryngology, Centro Hospitalar Universitário de Santo António, Instituto de Ciências Biomédicas Abel Salazar, Porto University, Porto, Portugal.
2. Department of Facial Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, California, USA.
3. Clínica Nariz e Face, Porto, Portugal.
4. Hospital Luz Arrábida, Porto, Portugal.