Funding for this research was provided by:
Rhinology and Laryngology Research Fund (327811)
Received: 18 October 2019
Accepted: 25 October 2020
First Online: 11 December 2020
Ethics approval and consent to participate
: According to Medical Research Council Tool, the presented case series does not require ethical clearance.
: Written informed consent for publication was obtained from all four patients.
: The authors declare that they have no competing interests.