Published on in Vol 7, No 4 (2021): Oct-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/30873, first published
.
1 Clinic of Phoniatrics, Pedaudiology & Communication Disorders, Medical Faculty, University Hospital Rheinisch-Westfaelische Technische Hochschule Aachen, Aachen, Germany
2 Audiovisual Media Center, Medical Faculty, University Hospital Rheinisch-Westfaelische Technische Hochschule Aachen, Aachen, Germany