title: Emphysema due to smoke from a herbal asthma remedy.
authors.affiliation: National Heart and Lung Institute, Imperial College, Royal Brompton Hospital , London SW3 6NP , UK.
authors.forename: Simon
authors.initials: S
authors.lastname: Freilich
authors.forename: Omar S
authors.initials: OS
authors.lastname: Usmani
authors.forename: Michael I
authors.initials: MI
authors.lastname: Polkey
authors.forename: Nicholas S
authors.initials: NS
authors.lastname: Hopkinson