TY - JOUR AU - Jenkins C AU - Hill K AU - McKeough Z AU - Alison J AU - Spencer L AU - Wootton S AU - Jenkins S AU - Eastwood P AU - Hillman D AU - Cecins N AU - Ng L BT - Lung DO - 10.1007/s00408-019-00216-5 LA - eng PY - 2019 T2 - Lung TI - Effects of Ongoing Feedback During a 12-Month Maintenance Walking Program on Daily Physical Activity in People with COPD ER -