title: The neurotransmitter hypothesis of urticaria.
mesh_terms: D002490:Central Nervous System / Q000502:physiology*; D002940:Circadian Rhythm; D003080:Cold Temperature / Q000009:adverse effects; D006632:Histamine / Q000502:physiology*; D006636:Histamine Release; D006801:Humans; D018377:Neurotransmitter Agents / Q000502:physiology*; D013315:Stress, Psychological / Q000150:complications; D013472:Sunlight / Q000009:adverse effects; D014581:Urticaria / Q000209:etiology / Q000503:physiopathology*
chemical_list: D018377:Neurotransmitter Agents; D006632:Histamine