title: Dose vs concentration in methacholine challenge.
authors.forename: Carmen Diaz
authors.initials: CD
authors.lastname: Donado
mesh_terms: D000280:Administration, Inhalation; D001985:Bronchial Provocation Tests / Q000379:methods*; D016085:Bronchoconstrictor Agents / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D006801:Humans; D016210:Methacholine Chloride / Q000008:administration & dosage*; D009330:Nebulizers and Vaporizers; D013990:Tidal Volume / Q000187:drug effects
chemical_list: D016085:Bronchoconstrictor Agents; D016210:Methacholine Chloride