Christopher Duckworth,1 Michael J Boniface,1 Adam Kirk,2 Thomas MA Wilkinson2– 4 1IT Innovation Centre, Digital Health and Biomedical Engineering, University of Southampton, Southampton, UK; 2 My mHealth Limited, London, UK; 3National Institute for Health Research Biomedical Research Centre, University of Southampton, Southampton, UK; 4Faculty of Medicine, University of Southampton, Southampton, UK Correspondence: Christopher Duckworth, School of Engineering, University of Southampton,...