Persistence of the otoprotective effect: How long does otoprotection against amikacin lasts - Oliveira, Andréia Ardevino de; Campos, Matheus de Souza; Murashima, Adriana de Andrade Batista; Rossato, Maria; Hyppolito, Miguel Angelo; Oliveira, José Antonio Apparecido de (Brazilian Journal of Otorhinolaryngology, 2012)