RT Journal Article SR Electronic T1 Carbon monoxide transfer coefficient KCO (TL/VA): a flawed index JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 893 OP 898 VO 18 IS 5 A1 J.E. Cotes YR 2001 UL http://erj.ersjournals.com/content/18/5/893.abstract AB