B0508.rar

: The primary limitations cited by the authors included a small sample size and the fact that most subjects already had moderate-to-severe COPD, leaving the efficacy for "mild" cases less clear. Technical File Note

The was identified as a novel and effective parameter for measuring the concavity of the flow-volume curve, providing a more nuanced look at lung impairment than standard metrics alone. B0508.rar

: The study analyzed 61 COPD patients drawn from the Seoul National University Airway Registry (SNUAR) and the Korean Obstructive Lung Disease (KOLD) cohort. : The primary limitations cited by the authors