TY - STAND AU - A. Pate AU - M. Barrowman AU - D. Webb AU - J. Pimenta AU - K. Davis AU - R. Williams AU - T. Van Staa AU - M. Sperrin BT - BMJ Open Respir Res DO - 10.1136/bmjresp-2018-000339 M1 - 1 PY - 2018 EP - e000339 T2 - BMJ Open Respir Res TI - Study investigating the generalisability of a COPD trial based in primary care (Salford Lung Study) and the presence of a Hawthorne effect VL - 5 SN - 2052-4439 (Print) 2052-4439 ER -