title: Airway hyperresponsiveness to mannitol and methacholine and exhaled nitric oxide: a random-sample population study.
authors.affiliation: Respiratory Research Unit, Department of Respiratory Medicine, Bispebjerg University Hospital, Copenhagen, Denmark.
authors.forename: Asger
authors.initials: A
authors.lastname: Sverrild
authors.forename: Celeste
authors.initials: C
authors.lastname: Porsbjerg
authors.forename: Simon Francis
authors.initials: SF
authors.lastname: Thomsen
authors.forename: Vibeke
authors.initials: V
authors.lastname: Backer