6/28/23, 11:34 PM IMPACT Pathway Feedback Search Clinical Topics Home Studies IMPACT IMPACT Disease Chronic obstructive pulmonary Reference Lipson DA, Barnhart F, Brealey N et al. Once-Daily Single-Inhaler Triple versus Dual Therapy in Patients with COPD. N Engl J Med. 2018 May 3;378(18):1671-1680. Open reference URL https://web.pathway.md/studies/recpmv6UBoWflYVnV 1/1