title: Response.
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN. Electronic address: kamonpun@live.com.
authors.forename: Kamonpun
authors.initials: K
authors.lastname: Ussavarungsi
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN.
authors.forename: Eric S
authors.initials: ES
authors.lastname: Edell
authors.affiliation: Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, MN.
authors.forename: Jay H
authors.initials: JH
authors.lastname: Ryu
mesh_terms: D006801:Humans; D017563:Lung Diseases, Interstitial; D012189:Retrospective Studies