@article {34796, title = {JMIR mHealth and uHealth}, journal = {Acceptance of Commercially Available Wearable Activity Trackers Among Adults Aged Over 50 and With Chronic Illness: A Mixed-Methods Evaluation}, year = {2016}, author = {Kathryn Mercer and Lora Giangregorio and Eric Schneider and Parmit Chilana and Melissa Li and Kelly Grindrod} }