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Sperm head abnormalities. Photomicrographs of normal sperm cells (a) and various types of sperm head abnormalities: lack of usual hook (b) banana like (c) amorphous (d) triangular (e) folded on themselves (f) two tailed (g). Proportion of abnormal sperm cells in IF MF exposed mice (h). N=20 (30 in sham-exposed group).
