TY - JOUR AU - Kennedy, CM; Powell, J; Payne, TH; Ainsworth, J; Boyd, A; Buchan, I TI - Active assistance technology for health-related behavior change: an interdisciplinary review JO - J Med Internet Res VL - 14 PY - 2012 DO - 10.2196/jmir.1893 L3 - PubMed-ID: 22698679 SP - e80. N1 - (3) ER -