title: A young man with dyspnoea and audible expiration: the loops never lie.
abstract: Spirometry provides clues to solving this puzzle of dyspnoea and wheeze in a young nonsmoker-the loops never lie! http://ow.ly/YC9zI A 10 s recording of expiratory sounds from this case can be found at: http://ow.ly/UVVu300moD1.
authors.affiliation: Dept of Internal Medicine, Carver College of Medicine and the University of Iowa, Iowa City, IA, USA.
authors.forename: Hisham
authors.initials: H
authors.lastname: Taher
authors.affiliation: Dept of Pathology, Carver College of Medicine and the University of Iowa, Iowa City, IA, USA.
authors.forename: Megan
authors.initials: M
authors.lastname: Samuelson
authors.affiliation: Dept of Internal Medicine, Carver College of Medicine and the University of Iowa, Iowa City, IA, USA.
authors.forename: Brian
authors.initials: B
authors.lastname: Gehlbach
authors.affiliation: Dept of Internal Medicine, Carver College of Medicine and the University of Iowa, Iowa City, IA, USA.
authors.forename: Thomas
authors.initials: T
authors.lastname: Gross