title: [Analgesia of opioid origin. A brief review of the question].
mesh_terms: D000698:Analgesia; D000818:Animals; D001923:Brain Chemistry; D004723:Endorphins / Q000502:physiology*
chemical_list: D004723:Endorphins
vernacular_title: L'analgésie d'origine opioïde. Le point sur la question.