title: The authors reply.
authors.affiliation: Section of Pulmonary/Critical Care and Allergy/Immunology, Department of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA; Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Washington, Seattle, WA.
authors.forename: Sarah E
authors.initials: SE
authors.lastname: Jolley
authors.forename: Catherine L
authors.initials: CL
authors.lastname: Hough