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(A) The number of spermatozoa tended to decrease at 4 and 8 weeks after busulfan treatment compared with the number before treatment (–1 week) and in the control group (–1, 4, and 8 weeks). (B and C) After busulfan treatment the total / progressive motility of the sperm appears to be lower than that of the control group. No significant difference in semen parameters was found between groups.
