the purpose of this study was to investigate the cardiorespiratory effects of the synthetic met-enkephalin , d-ala-2-me-phe-4-met- ( 0 ) -ol enkephalin ( fk 33-824 ) after its administration into the anterior hypothalamic area , paraventricular hypothalamic nuclei and third ventricle .
C0014295
met-enkephalin
C0014298
enkephalin