Defects in sperm morphology of the patients harboring DNAH3 variants. (A, B) Abnormal sperm morphology was observed through Papanicolaou staining (A), and SEM analysis (B) compared to normal control.

Keating J, Grundy CE, Fivey PS et al. Investigation into the association between the presence of cytoplasmic residues on the human sperm midpiece and defective sperm function. J. Reprod.