Pulmonary Eosinophilic Granulomatosis with Polyangiitis Has IgG4 Plasma Cells and Immunoregulatory Features

Zachary M. Dong, Edwin Lin, Michael E. Wechsler, Peter F. Weller, Amy D. Klion, Bruce S. Bochner, Don A. Delker, Mark W. Hazel, Keke Fairfax, Paneez Khoury, Praveen Akuthota, Peter A. Merkel, Anne Marie Dyer, Carol Langford, Ulrich Specks, Gerald J. Gleich, Vernon M. Chinchilli, Benjamin Raby, Mark Yandell, Frederic Clayton