title: Exercise for COPD: take it without a grain of salt.
authors.forename: Bruce K
authors.initials: BK
authors.lastname: Rubin
mesh_terms: D000280:Administration, Inhalation; D005081:Exercise Therapy; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000628:therapy*; D016032:Randomized Controlled Trials as Topic; D012462:Saline Solution, Hypertonic / Q000008:administration & dosage*
chemical_list: D012462:Saline Solution, Hypertonic