Design and usability evaluation of user-centered and visual-based aids for dietary food measurement on mobile devices in a randomized controlled trial. - Ying-Chieh Liu 001; Chien-Hung Chen; Chien-Wei Lee; Yu-Sheng Lin; Hsin-Yun Chen; Jou-Yin Yeh; Sherry Yueh-Hsia Chiu (J. Biomed. Informatics, 2016)