J Exp Med. 1982 Nov 1;156(5):1398-414. doi: 10.1084/jem.156.5.1398.
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Spleen cells from adult mice given total lymphoid irradiation or from newborn mice have similar regulatory effects in the mixed leukocyte reaction. I. Generation of antigen-specific suppressor cells in the mixed leukocyte reaction after the addition of spleen cells from adult mice given total lymphoid irradiation.