Advanced Care Research Centre / School of Engineering, University of Edinburgh, UK.
Federal Medical Centre, Asaba, Delta State, Nigeria.
University of Port Harcourt Teaching Hospital, Nigeria.
Sheffield Teaching Hospitals NHS Foundation Trust, UK.
Northern Deanery, Newcastle, UK.
Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK.
New Cross Hospital, Royal Wolverhampton NHS Trust, UK.
University of Plymouth, Devon, UK.
University of Cambridge, Cambridge, UK.
Diabetic Retinopathy Service Lions / University of Calabar Teaching Hospital Diabetic Centre, Nigeria.
Manchester University Trust, Manchester, UK.
Sheffield Teaching Hospitals NHS Foundation Trust and Barnsley Hospital NHS Foundation Trust, UK.