- Correspondence to Dr Marlise Poolman, North Wales Centre for Primary Care Research (Bangor University), Cambrian 2, Wrexham Technology Park, Wrexham, LL13 7YP, UK;
- Received March 23, 2016
- Revision received September 12, 2016
- Accepted December 29, 2016
- First published January 16, 2017.
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