Abstract:After defining the term 'foreign embryonic isoantigens', the author describes the experimental sequence which has allowed this new fetoprotein class to be identified. Experiments have followed three different directions, namely (i) passive immunization, by which conceptus antibodies raised in another animal species are transferred to the female animal, the effects on the offspring becoming apparent after pregnancy; (ii) laboratory techniques, where the presence of conceptus antibodies in serum from aborting wo… Show more
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