title: Preliminary studies of a new bronchodilator (WG 253) in man.
mesh_terms: D000336:Aerosols; D001794:Blood Pressure / Q000187:drug effects; D001986:Bronchial Spasm / Q000139:chemically induced / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004562:Electrocardiography; D006339:Heart Rate / Q000187:drug effects; D006632:Histamine; D006801:Humans; D007545:Isoproterenol / Q000494:pharmacology*; D010919:Placebos; D011674:Pulse / Q000187:drug effects; D013147:Spirometry
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents; D010919:Placebos; D006632:Histamine; D007545:Isoproterenol