Research LetterReduction in Alveolar Macrophage Size in Refractory Autoimmune Pulmonary Alveolar Proteinosis After Treatment With PioglitazoneVis, Daniel C. MD*; Kelly, Margaret M. MD†; De Heuvel, Elaine BSc†; MacEachern, Paul R. MD*Author Information Departments of *Medicine †Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada D.C.V. and P.R.M. conceived of the project. D.C.V., M.M.K., and P.R.M. contributed important intellectual content. E.D.H. aided in image acquisition; all authors contributed to, and approved the final version of the manuscript. P.R.M. is guarantor of this manuscript, taking full responsibility for its contents. Disclosure: There is no conflict of interest or other disclosures. Reprints: Paul R. MacEachern, MD, 3330 Hospital Drive NW, Calgary, AB, Canada T2N 4N1 (e-mail: email@example.com). Journal of Bronchology & Interventional Pulmonology: July 2020 - Volume 27 - Issue 3 - p 219-222 doi: 10.1097/LBR.0000000000000686 Buy Metrics Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.