title: Controlled clinical trials in asthmatics.
mesh_terms: D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D004341:Drug Evaluation; D005260:Female; D006801:Humans; D011247:Pregnancy
chemical_list: D001993:Bronchodilator Agents