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Doherty AM, Herrmann-Werner A, Rowe A, Brown J, Weich S, Ismail K.Doherty AM, et al.BMJ Open Diabetes Res Care. 2021 Jan;9(1):e001934. doi: 10.1136/bmjdrc-2020-001934.BMJ Open Diabetes Res Care. 2021.PMID: 33452059Free PMC article.Clinical Trial.