title: [The difficult measurement of inhalation technique].
authors.forename: J M
authors.initials: JM
authors.lastname: Valderas Martínez
authors.forename: X
authors.initials: X
authors.lastname: Ferrer Menduiña
mesh_terms: D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage*; D006801:Humans; D009330:Nebulizers and Vaporizers; D010353:Patient Education as Topic
chemical_list: D001993:Bronchodilator Agents