Ohar, Jill A.Ferguson, Gary T.Mahler, Donald A.Drummond, M. BradleyDhand, RajivPleasants, Roy A.Anzueto, AntonioHalpin, David M.G.Price, David B.Drescher, Gail S.Hoy, Haley M.Haughney, JohnHess, Michael W.Usmani, Omar S2022-01-062022-01-062022-01-06Ohar, J A, Ferguson, G T, Mahler, D A, Drummond, M B, Dhand, R, Pleasants, R A, Anzueto, A, Halpin, D M G, Price, D B, Drescher, G S, Hoy, H M, Haughney, J, Hess, M W & Usmani, O S 2022, 'Measuring peak inspiratory flow in patients with chronic obstructive pulmonary disease', International journal of chronic obstructive pulmonary disease , vol. 17, pp. 79-92. https://doi.org/10.2147/COPD.S3195111176-9106PubMedCentral: PMC8747625https://hdl.handle.net/2164/17794Acknowledgments The authors meet the criteria for authorship as recommended by the International Committee of Medical Journal Editors. The authors received no direct compensation related to the development of the manuscript. Writing, editorial support, and formatting assistance was provided by Suchita Nath-Sain, PhD, and Maribeth Bogush, PhD, of Cactus Life Sciences (part of Cactus Communications), which was contracted and compensated by Boehringer Ingelheim Pharmaceuticals, Inc. (BIPI) for these services. BIPI was given the opportunity to review the manuscript for medical and scientific accuracy as well as intellectual property considerations. Funding: Writing, editorial support, and formatting assistance was contracted and compensated by Boehringer Ingelheim Pharmaceuticals, Inc. (BIPI).14542748engchronic obstructive pulmonary diseasedry powder inhalerspeak inspiratory flowR MedicineRJournal article10.2147/COPD.S31951117