Carmen García-Garrido

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OBJECTIVE To determine whether pronuclear morphology is a useful additional criterion when selecting embryos for transfer. METHOD A modified Tesarik and Greco scoring system was used in this retrospective study to assess the pronuclear morphology of 883 zygotes from 214 in vitro fertilization or intracytoplasmic sperm injection cycles. Pronucleus size and(More)
BACKGROUND & OBJECTIVES The major cause of fertilisation failure after ICSI is failure of the oocyte to initiate the biochemical processes necessary for activation. This inability could be ascribed to cytoplasmic immaturity of those gametes even if they had reached nuclear maturity. The activation of a mature oocyte is characterised by release from(More)
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