Received: 23 June 2021
Accepted: 21 April 2022
First Online: 14 May 2022
: Not applicable. This was a review of publicly available registry data and did not involve human participants.
: Not applicable.
: ALS and KEH were Australian New Zealand Clinical Trials Registry (ANZCTR) staff at time of writing. LMA was the ANZCTR manager. GX, DM, LMJ and AB declare no competing interests.