TY - JOUR AU - Beasley R. AU - Jenkins C. BT - Thorax C2 - PMID: 23802285 LA - eng M1 - 6 PY - 2013 SP - 590 EP - 1 ST - Thorax T2 - Thorax TI - Authors' reply to 'explaining differential effects of tiotropium on mortality in COPD VL - 68 ER -