title: Presence of immunoreactive beta-endorphin and enkephalin-like material in the retina and other tissues of the frog, Rana pipiens.
mesh_terms: D000818:Animals; D004723:Endorphins / Q000097:blood / Q000378:metabolism* / Q000528:radiation effects; D004745:Enkephalins / Q000378:metabolism*; D005260:Female; D007031:Hypothalamus / Q000378:metabolism; D008027:Light; D008297:Male; D010902:Pituitary Gland / Q000378:metabolism; D011894:Rana pipiens; D012160:Retina / Q000378:metabolism*; D012867:Skin / Q000378:metabolism
chemical_list: D004723:Endorphins; D004745:Enkephalins