Authors: Belza, B Steele, BG Hunziker, J Lakshminaryan, S Holt, L Buchner, DM

Citation: B. Belza et al., Correlates of physical activity in chronic obstructive pulmonary disease, NURS RES, 50(4), 2001, pp. 195-202

Authors: Steele, BG Holt, L Belza, B Ferris, S Lakshminaryan, S Buchner, DM

Citation: Bg. Steele et al., Quantitating physical activity in COPD using a triaxial accelerometer, CHEST, 117(5), 2000, pp. 1359-1367