[This corrects the article DOI: 10.2196/mhealth.8201.].
Keywords: fall detection; lower limb amputation; machine learning; mobile phones.
©Nicholas Shawen, Luca Lonini, Chaithanya Krishna Mummidisetty, Ilona Shparii, Mark V Albert, Konrad Kording, Arun Jayaraman. Originally published in JMIR Mhealth and Uhealth (http://mhealth.jmir.org), 20.12.2017.