Daily step counts in a US cohort with COPD
Moy M, Danilack V, Weston N, Garshick E. Daily step counts in a US cohort with COPD. Respiratory Medicine 2012, 106: 962-969. PMID: 22521225, PMCID: PMC3575136, DOI: 10.1016/j.rmed.2012.03.016.Peer-Reviewed Original Research