title: In spite of its validity, has Dale's principle served its purpose? A scientific paradox.
authors.affiliation: South African Brain Research Institute, Johannesburg.
authors.forename: F J
authors.initials: FJ
authors.lastname: Lichtigfeld
authors.forename: M A
authors.initials: MA
authors.lastname: Gillman
mesh_terms: D005727:Ganglia, Spinal / Q000502:physiology; D049673:History, 20th Century; D006801:Humans; D009474:Neurons / Q000378:metabolism / Q000502:physiology*; D018377:Neurotransmitter Agents / Q000502:physiology*; D009613:Nobel Prize; D010827:Physiology / Q000266:history; D013373:Substance P / Q000502:physiology
chemical_list: D018377:Neurotransmitter Agents; D013373:Substance P