00558nas a2200205   4500000000100000000000100001008004100002100001200043700001700055700001200072700001500084700001300099700001600112700001600128700001500144245014300159300001200302490000600314022003200320       2018                            d1 aA. Pate1 aM. Barrowman1 aD. Webb1 aJ. Pimenta1 aK. Davis1 aR. Williams1 aT. Van Staa1 aM. Sperrin00aStudy investigating the generalisability of a COPD trial based in primary care (Salford Lung Study) and the presence of a Hawthorne effect  ae0003390 v5  a2052-4439 (Print) 2052-4439