TY - JOUR T1 - FEV<sub>1</sub>/FEV<sub>6</sub> May Misdiagnose Patients With COPD JF - Respiratory Care SP - 999 LP - 1001 DO - 10.4187/respcare.04650 VL - 61 IS - 7 AU - Gregg L Ruppel AU - Jeffrey M Haynes AU - David A Kaminsky Y1 - 2016/07/01 UR - http://rc.rcjournal.com/content/61/7/999.2.abstract N2 - ER -