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Testosterone and gonadotropin serum levels in P40 and P90 WT and D3KO mice. A, Serum testosterone. B, Serum LH. C, Serum FSH. Data represent the mean ± SEM of determinations in 6–12 mice per group. *, P < .05; **, P < .01; ***, P < .001, as determined by the Student's t test.
