No effect of exogenous melatonin on development of cryopreserved metaphase II oocytes in mouse

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Background:This study was conducted to investigate effect of exogenous melatonin on the development of mouse mature oocytes after cryopreservation.Results:First,mouse metaphase Ⅱ(MII) oocytes were vitrified in the open-pulled straws(OPS).After warming,the
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