title: [Research on the nature of the utero-relaxant principle contained in aqueous corpus luteum extracts].
mesh_terms: D003338:Corpus Luteum / Q000737:chemistry*; D005260:Female; D006801:Humans; D012106:Research; D014599:Uterus / Q000494:pharmacology*
keywords: CORPUS LUTEUM/chemistry; UTERUS/pharmacology