Lu, K H Birth of twins after transfer of cattle embryos produced by in vitro techniques. [electronic resource] - The Veterinary record May 1988 - 539-40 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0042-4900 Standard No.: 10.1136/vr.122.22.539 doi Subjects--Topical Terms: AnimalsCattle--physiologyEmbryo Transfer--veterinaryFemaleMorulaPregnancyPregnancy, Animal--physiologyTwins