Funding for this research was provided by:
National Institute on Deafness and Other Communication Disorders (1R01DC014463-01A1)
Received: 30 December 2019
Accepted: 18 May 2020
First Online: 9 June 2020
Ethics approval and consent to participate
: The institutional human subjects review board approved the study. All human subjects provided signed consent to participate in the study.
: Not applicable.
: There are no competing interests to declare.