Funding for this research was provided by:
K Grey Foundation (RE092)
Received: 14 May 2019
Accepted: 28 April 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: Ethical approval has been gained from the Centre for Addiction and Mental Health Research Ethics Board (approval number CAMH REB 046–2017). All participation is with fully informed written consent which is revocable at any time.
: Participant information includes a statement that results will be published but with no information that could allow for the identification of a participant.
: The researchers declare no competing interests.