title: Clarification of salmeterol studies.
authors.forename: Harold S
authors.initials: HS
authors.lastname: Nelson
authors.forename: Kathleen A
authors.initials: KA
authors.lastname: Rickard
mesh_terms: D000280:Administration, Inhalation; D000420:Albuterol / Q000008:administration & dosage* / Q000031:analogs & derivatives*; D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage*; D006801:Humans; D011208:Powders; D000068299:Salmeterol Xinafoate
chemical_list: D001993:Bronchodilator Agents; D011208:Powders; D000068299:Salmeterol Xinafoate; D000420:Albuterol