Routine application of partial zona dissection for male factor infertility.


Partial zona dissection (PZD) increases the chances of fertilization by improving the access of spermatozoa to the perivitelline space (PVS) helping those spermatozoa unable to penetrate the zona pellucida (ZP) and possibly those poorly able to penetrate the oolemma. Problems arise in assessing semen to decide which parameters might indicate defects of this… (More)


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