title: A comparative trial of choline theophyllinate (Choledyl) and controlled release aminophylline (Phyllocontin).
mesh_terms: D000402:Airway Obstruction / Q000188:drug therapy*; D000628:Aminophylline / Q000008:administration & dosage / Q000627:therapeutic use*; D002794:Choline / Q000031:analogs & derivatives* / Q000627:therapeutic use; D003692:Delayed-Action Preparations; D006801:Humans; D010366:Peak Expiratory Flow Rate; D013806:Theophylline / Q000031:analogs & derivatives* / Q000627:therapeutic use
chemical_list: D003692:Delayed-Action Preparations; D000628:Aminophylline; D013806:Theophylline; D002794:Choline