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Article
Failure to Recover Infective ‘Ribonucleic Acid’ from Myxovirus Preparations
IT now seems clear that preparations of infective ‘ribonucleic acid’ can be obtained from crude preparations of many animal viruses, although Colter et al. have reported failure with Bunyamwera virus preparations
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Article
Failure to induce Immunological Tolerance during Recovery from Irradiation
NEONATAL animals and animals given large doses of whole-body X-irradiation are immunologically similar in two important respects: both are very poor producers of antibody, but both become satisfactory producer...