TY - STAND AU - V. Kiri AU - N. Pride AU - J. Soriano AU - J. Vestbo BT - Am J Respir Crit Care Med DO - 10.1164/rccm.200502-210OC M1 - 4 PY - 2005 SP - 460 EP - 4 T2 - Am J Respir Crit Care Med TI - Inhaled corticosteroids in chronic obstructive pulmonary disease: results from two observational designs free of immortal time bias VL - 172 SN - 1073-449X (Print) 1073-449x ER -