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Development of total number of leukocytes and lymphocytes from birth to 126 weeks of age. (A) Numbers of leukocytes. Sexes are represented by black (male) and red colors (female). (B) Changes of total numbers of lymphocytes. Separation between the sexes was done as for leukocytes. + marks the first bleeding time point after transfer and vaccination, ++ marks the first bleeding time point after booster vaccinations.
