TY - STAND AU - K. Wing AU - E. Williamson AU - J. Carpenter AU - L. Wise AU - S. Schneeweiss AU - L. Smeeth AU - J. Quint AU - I. Douglas BT - Health Technol Assess DO - 10.3310/hta25510 M1 - 51 PY - 2021 SP - 1 EP - 70 T2 - Health Technol Assess TI - Medications for chronic obstructive pulmonary disease: a historical non-interventional cohort study with validation against RCT results VL - 25 SN - 1366-5278 ER -