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. 2019 May 22;9(5):e025903. doi: 10.1136/bmjopen-2018-025903

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© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

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Theory of change/pathway of action for effects of intervention. NB: all taking place within different contexts (local health economies) and with different implementation processes. HbA1c, glycated haemoglobin; SES, socioeconomic status.