title: Urticaria and extracutaneous histamine.
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006632:Histamine / Q000494:pharmacology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012867:Skin / Q000378:metabolism*; D014581:Urticaria / Q000209:etiology*
chemical_list: D006632:Histamine