Novel technologies for assessing dietary intake: evaluating the usability of a mobile telephone food record among adults and adolescents.
Daugherty BL, Schap TE, Ettienne-Gittens R, Zhu FM, Bosch M, Delp EJ, Ebert DS, Kerr DA, Boushey CJ. Novel technologies for assessing dietary intake: evaluating the usability of a mobile telephone food record among adults and adolescents. J Med Internet Res. 2012 Apr 13; 14(2):e58.