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Study protocol. The study protocol showing the randomization into two groups and the follow-up sessions are portrayed in this picture. The assessments and interventions provided during each session are listed. In addition, data regarding the number of patients who did not meet the eligibility criteria are presented. GCS = Glasgow Coma Scale; OWSV = one-way speaking valve; QOL = quality of life; SIT = Sentence Intelligibility Test; SLP = speech–language pathologist.
