title: Frontiers of research in the medicinal chemistry and molecular pharmacology of opioid peptides.
mesh_terms: D000818:Animals; D004723:Endorphins / Q000138:chemical synthesis / Q000502:physiology*; D004745:Enkephalins / Q000138:chemical synthesis / Q000502:physiology*; D006801:Humans; D010146:Pain / Q000503:physiopathology; D011957:Receptors, Opioid / Q000502:physiology*; D013329:Structure-Activity Relationship
chemical_list: D004723:Endorphins; D004745:Enkephalins; D011957:Receptors, Opioid