Received: 1 March 2021
Accepted: 19 May 2021
First Online: 25 August 2021
: Not Applicable.
: As this was a systematic review, no primary data was collected. We sought young peoples’ perspectives on the rationale of our research and on the nature of our findings but this was classed as Patient and Public Involvement and not research. Therefore we did not require ethical approval (Health Research Authority, 2020;ExternalRef removed). However, all young people provided informed consent to be quoted with parental consent provided for young people under age 16.
: We have no financial or personal conflicts of interest to declare.