title: A chemical study of some biologically active pineal fractions.
mesh_terms: D000818:Animals; D002369:Castration; D002851:Chromatography, High Pressure Liquid; D002854:Chromatography, Paper; D007030:Hypothalamo-Hypophyseal System / Q000502:physiology; D008297:Male; D010870:Pineal Gland / Q000032:analysis / Q000378:metabolism*; D011621:Pteridines / Q000032:analysis* / Q000378:metabolism; D051381:Rats; D012756:Sheep
chemical_list: D011621:Pteridines