1 Section of Pulmonary, Critical Care, and Sleep Medicine, Yale School of Medicine, PO Box 208057, New Haven, CT 06520-8057, USA. Electronic address: danielle.antin-ozerkis@yale.edu.
2 Departments of Pulmonary and Rheumatology, Cleveland Clinic Foundation, 9500 Euclid Avenue, Desk A90, Cleveland, OH 44195, USA. Electronic address: highlak@ccf.org.