Pengaruh Vitrifikasi terhadap Maturitas dan Kualitas Oosit Matur dan Imatur: Kajian terhadap Gap-Junction, Apoptosis, Oocyte Secreted Factors, Reseptor FSH dan LH pada Sel Kumulus-Granulosa = Effect of Mature and Immature Oocytes Vitrification on Maturity- and Quality-Associated Genes: Focus on Gap-Junction, Apoptosis, Oocyte Secreted Factors, FSH dan LH Receptors on Cumulus-Granulosa Cells