Saeb, Sohrab, Mi Zhang, Christopher J. Karr, Stephen M. Schueller, Marya E. Corden, Konrad P. Kording, and David C. Mohr, “Mobile Phone Sensor Correlates of Depressive Symptom Severity in Daily-Life Behavior: An Exploratory Study”, Journal of Medical Internet Research 17, no. 7 (July 2015), p. e175, http://www.jmir.org/2015/7/e175.
