Overview Efficacy of Internet and Smartphone Application-delivered Tinnitus Retraining Therapy Status: Withdrawn Trial end date: 2016-09-01 Target enrollment: Participant gender: Summary The purpose of this study is to prove the efficacy of the internet and smartphone application-delivered tinnitus retraining therapy (TRT). Phase: N/A Details Lead Sponsor: Seoul National University HospitalCollaborator: Soonchunhyang University Hospital