00507nas a2200193   4500000000100000008004100001100001400042700001100056700001500067700001300082700001400095700001400109700001400123700001500137700001400152700001300166700000900179245012500188       2019                            d1 aJenkins C1 aHill K1 aMcKeough Z1 aAlison J1 aSpencer L1 aWootton S1 aJenkins S1 aEastwood P1 aHillman D1 aCecins N1 aNg L00aEffects of Ongoing Feedback During a 12-Month Maintenance Walking Program on Daily Physical Activity in People with COPD