title: An unusual cause of bronchial obstruction.
authors.affiliation: Department of Respiratory Medicine, Lambeth Wing, St Thomas' Hospital, Guys and Thomas NHS Foundation Trust, London, UK. E-mail: lijuahmed@gmail.com.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Liju
authors.forename: Neel
authors.initials: N
authors.lastname: Sharma
authors.forename: Heather
authors.initials: H
authors.lastname: Milburn