title: Neuronal localisation of immunoreactive enkephalin and beta-endorphin in the earthworm.
mesh_terms: D000818:Animals; D004723:Endorphins / Q000032:analysis*; D004745:Enkephalins / Q000032:analysis*; D005455:Fluorescent Antibody Technique; D009474:Neurons / Q000032:analysis*; D009835:Oligochaeta / Q000032:analysis*; D011957:Receptors, Opioid
chemical_list: D004723:Endorphins; D004745:Enkephalins; D011957:Receptors, Opioid