PT - JOURNAL ARTICLE AU - Neil R MacIntyre TI - Accurately Diagnosing COPD: A Clinical Challenge With Important Consequences AID - 10.4187/respcare.08741 DP - 2021 Jan 01 TA - Respiratory Care PG - 173--174 VI - 66 IP - 1 4099 - http://rc.rcjournal.com/content/66/1/173.short 4100 - http://rc.rcjournal.com/content/66/1/173.full