1 Centre for Health Economics and Medicines Evaluation, Bangor University, UK. Electronic address: [email protected].
2 Centre for Health Economics and Medicines Evaluation, Bangor University, UK.
3 Bristol Eye Hospital, Bristol, UK; Bristol Medical School, University of Bristol, UK.
4 Institute of Translational Medicine, University of Liverpool, UK; Department of Paediatric Rheumatology, Alder Hey Children's NHS Foundation Trust, UK.
5 Bristol Medical School, University of Bristol, UK; University Hospitals Bristol NHS Foundation Trust, Bristol, UK.