title: Drug delivery characteristics of metered-dose inhalers.
authors.affiliation: Inhalation Technology Laboratory, 3M Pharmaceuticals, St. Paul, Minn., USA.
authors.forename: R K
authors.initials: RK
authors.lastname: Schultz
mesh_terms: D016503:Drug Delivery Systems; D006801:Humans; D009330:Nebulizers and Vaporizers