Goodday, Sarah M. http://orcid.org/0000-0003-2159-1754
Friend, Stephen
Article History
Received: 1 April 2019
Accepted: 8 July 2019
First Online: 31 July 2019
Competing interests
: The author (S.M.G.) declares no competing interests, S.F. holds a position on the Oura Health board.