FRAHM, H [So-called chorionic gonadotropin]. [electronic resource] - Archiv fur Gynakologie 1956 - 77-80 p. digital Publication Type: Journal Article ISSN: 0003-9128 Standard No.: 10.1007/BF01058672 doi Subjects--Topical Terms: ChorionChorionic GonadotropinGonadotropinsHumans