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Immunodetection of CD4+ cells in lung tissue from 125-d/14-d PRN baboons ± MOPC or 2A11. (a) A representative 125-d/PRN × 14-d BPD animal (out of n = 3). (b) A representative MOPC-treated 125-d/14-d PRN animal (n = 3). (c) A representative 2A11-treated 125-d/14-d PRN animal (n = 3).
