title: A one-horse race can have only one winner.
authors.affiliation: Boston University, Boston, Massachusetts.
authors.forename: Kenneth R
authors.initials: KR
authors.lastname: Lutchen
mesh_terms: D000818:Animals; D001249:Asthma / Q000503:physiopathology*; D016535:Bronchial Hyperreactivity / Q000503:physiopathology*; D006801:Humans; D009130:Muscle, Smooth / Q000503:physiopathology*