Hajisafari A, et al. - Herein authors determined the impact of radiotherapy (RT) on hearing function of patients with head and neck cancer after RT according to the total dose delivered to specific parts of the auditory system. For patients receiving ≥40 Gy as their mean dose, an increased risk of hearing loss was present vs those receiving <30 Gy. Radiation dose was seen to have negative effects on the auditory system. They noted that this effect occurred more in high-frequency hearing. The main cause of damage to hearing was the received dose to the cochlea.