title: A Breath of Fresh Air.
authors.affiliation: Baylor College of Medicine, Houston, Texas. Electronic address: sellin@bcm.edu.
authors.forename: Joseph H
authors.initials: JH
authors.lastname: Sellin
mesh_terms: D001944:Breath Tests / Q000379:methods*; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans