TY - JOUR T1 - Is It Asthma, COPD, or Something In Between, and Does it Matter? JF - Respiratory Care SP - 1354 LP - 1356 DO - 10.4187/respcare.01970 VL - 57 IS - 8 AU - Donald P Tashkin Y1 - 2012/08/01 UR - http://rc.rcjournal.com/content/57/8/1354.abstract N2 - ER -