Received: 23 September 2018
Accepted: 14 January 2019
First Online: 5 March 2019
: Approval for this service evaluation was given by Birmingham Community Healthcare NHS Foundation Trust R&D team and registered as a service evaluation (audit reference number 124).
: Not applicable.
: Dominic P Laverty, Owen Addison, Berhanu A Wubie, Giseon Heo, Sat Parmar, Timothy Martin, Prav Praveen, David Pearson, David Newsum, Michael Murphy and Geoffrey Bateman declare that they have no competing interests.
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