Text and Data Mining valid from 2019-07-09
Received: 6 June 2019
Accepted: 30 June 2019
First Online: 9 July 2019
Ethics approval and consent to participate
: This study was a retrospective analysis from a prospectively collected, ethics approved, head and neck database. Written informed consent was obtained from all patients to participate in the database. The ethics committee that approved the study was the Northern Sydney Local Health District Research Office and the reference number is RESP/15/255.
: Not applicable.
: The authors declare that they have no competing interests.