Received: 25 May 2020
Accepted: 17 June 2020
First Online: 9 July 2020
Ethics approval and consent to participate
: The need for ethical approval for this review was waived.
: Not applicable.
: We (<i>We</i> represents all listed authors (MT, RP, HT, LB, SH, AS, HCP) wish to confirm that there are no known conflicts of interest associated with this publication and there has been no significant financial support for this work that could have influenced its outcome.