SARA: a mobile app to engage users in health data collection. - Mashfiqui Rabbi; Meredith Philyaw-Kotov; Jinseok Lee; Anthony Mansour; Laura Dent; Xiaolei Wang; Rebecca M. Cunningham; Erin E. Bonar; Inbal Nahum-Shani; Predrag V. Klasnja; Maureen A. Walton; Susan A. Murphy (UbiComp/ISWC Adjunct, 2017)