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OBJECTIVE To investigate the within-day test-retest reliability of the Timed Up & Go (TUG) test in patients with advanced chronic obstructive pulmonary disease (COPD), chronic heart failure (CHF),(More)
BACKGROUND Recent research shows that the prevalence of patients with very severe chronic obstructive pulmonary disease (COPD), congestive heart failure (CHF) and chronic renal failure (CRF)(More)