title: Validation of two activity monitors in patients with COPD.
authors: D
authors: D
authors: Langer
authors: R
authors: R
authors: Gosselink
authors: R
authors: R
authors: Sena
authors: C
authors: C
authors: Burtin
authors: M
authors: M
authors: Decramer
authors: T
authors: T
authors: Troosters
mesh_terms: D000368:Aged; D002153:Calorimetry, Indirect; D006801:Humans; D008875:Middle Aged; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D009043:Motor Activity; D029424:Pulmonary Disease, Chronic Obstructive / Q000534:rehabilitation*; D015203:Reproducibility of Results