- Correspondence to Dr Florien Boele, Patient-Centred Outcomes Research (LIMR) & Academic Unit of Health Economics (LIHS), University of Leeds, Leeds LS9 7TF, UK;
- Received May 7, 2019
- Revision received July 24, 2019
- Accepted August 14, 2019
- First published September 19, 2019.
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