title: Take a deep breath.
authors.forename: Erica
authors.initials: E
authors.lastname: Klarreich
mesh_terms: D000818:Animals; D001249:Asthma / Q000175:diagnosis / Q000503:physiopathology; D004646:Emphysema / Q000175:diagnosis / Q000503:physiopathology; D005740:Gases / Q000032:analysis* / Q000737:chemistry; D006371:Helium / Q000032:analysis / Q000737:chemistry; D006801:Humans; D007554:Isotopes; D008168:Lung / Q000473:pathology* / Q000502:physiology / Q000503:physiopathology; D008279:Magnetic Resonance Imaging / Q000379:methods*; D051379:Mice; D014979:Xenon Isotopes / Q000032:analysis / Q000737:chemistry
chemical_list: D005740:Gases; D007554:Isotopes; D014979:Xenon Isotopes; D006371:Helium