title: Little orphan asthmas?
authors.affiliation: University of Pittsburgh Asthma Institute at UPMC, Pulmonary Allergy and Critical Care Medicine Division, Department of Medicine, University of Pittsburgh, Pittsburgh, Pa. Electronic address: wenzelse@upmc.edu.
authors.forename: Sally E
authors.initials: SE
authors.lastname: Wenzel
mesh_terms: D001249:Asthma / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male
keywords: Severe asthma; orphan disease; prevalence; survey