Identifying priority challenges of older adults with COPD: A multiphase intervention refinement study.

Iyer AS, Wells RD, Bechthold AC, Armstrong M, O'Beirne R, Byun JY, Coffee-Dunning J, Odom JN, Buhr RG, Suen AO, Kotwal AA, Witt LJ, Brown CJ, Dransfield MT, Bakitas MA