Ultrastructural changes in sperm with improved fertilizability after treatment with egg yolk.


OBJECTIVES To determine the existence of differences in the ultrastructural parameters between the medium-washed sperm samples of the affected and nonaffected egg yolk (EY) groups and to verify whether ultrastructural changes occur in the EY-affected spermatozoa after EY preincubation. SETTING The study was performed in the Laboratory of the IVF Unit… (More)


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