1. Department of Diabetes; Salford Royal NHS Foundation Trust; Salford UK
2. Division of Cardiovascular and Diabetes Research; The LIGHT Laboratories; University of Leeds and St James University Hospital; Leeds UK
3. Department of Endocrinology, Diabetes and Nutrition; Charité University Medical School; Berlin Germany
4. Institut für Diabetes-Technologie Forschungs und Entwicklungsgesellschaft mbH an der Universität Ulm; Ulm Germany