Morris, J M Compounds interfering with ovum implantation and development. I. Alkaloids and antimetabolites. [electronic resource] - Fertility and sterility - 7-17 p. digital Publication Type: Journal Article ISSN: 0015-0282 Standard No.: 10.1016/s0015-0282(16)36181-7 doi Subjects--Topical Terms: Alkaloids--pharmacologyAnimalsAntimetabolites--pharmacologyColchicine--therapyEmbryo Implantation--drug effectsFemaleFertility--drug effectsFetus--drug effectsHaplorhiniNucleosides--pharmacologyPregnancyPregnancy, Animal--drug effectsPurines--pharmacologyRabbitsVinblastine--pharmacology