title: Chronic urticaria.
mesh_terms: D002908:Chronic Disease; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D004809:Ephedrine / Q000627:therapeutic use; D005260:Female; D006801:Humans; D008407:Mast Cells / Q000648:ultrastructure; D008875:Middle Aged; D010640:Phenothiazines / Q000627:therapeutic use; D010672:Phenytoin / Q000627:therapeutic use; D012882:Skin Tests; D014581:Urticaria / Q000188:drug therapy / Q000276:immunology
chemical_list: D010640:Phenothiazines; D010672:Phenytoin; D004809:Ephedrine