PT - JOURNAL ARTICLE AU - Gershon, Andrea S. AU - Hwee, Jeremiah AU - Chapman, Kenneth R. AU - Aaron, Shawn D. AU - O'Donnell, Denis E. AU - Stanbrook, Matthew B. AU - Bourbeau, Jean AU - Tan, Wan AU - Su, Jiandong AU - Victor, J. Charles AU - To, Teresa TI - Factors associated with undiagnosed and overdiagnosed COPD AID - 10.1183/13993003.00458-2016 DP - 2016 Aug 01 TA - European Respiratory Journal PG - 561--564 VI - 48 IP - 2 4099 - http://erj.ersjournals.com/content/48/2/561.short 4100 - http://erj.ersjournals.com/content/48/2/561.full SO - Eur Respir J2016 Aug 01; 48