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Macroscopic aspect of the scrotum of Wistar rats from (A) AC group (testicles exposed to the external AC magnetic field only) 7 days post-treatment, (B) MNH group (testicles injected with magnetic fluid and exposed to the external AC magnetic field) 4 days post-treatment, (C) MNH Group 15 days post-treatment, and (D) MNH Group 56 days post-treatment.
