Vatanparast, Mahboubeh GDF9-β promotes folliculogenesis in sheep ovarian transplantation onto the chick embryo chorioallantoic membrane (CAM) in cryopreservation programs. [electronic resource] - Archives of gynecology and obstetrics 09 2018 - 607-615 p. digital Publication Type: Journal Article ISSN: 1432-0711 Standard No.: 10.1007/s00404-018-4838-x doi Subjects--Topical Terms: AnimalsChick EmbryoChorioallantoic MembraneCryopreservation--methodsFemaleFertility Preservation--methodsFreezingGrowth Differentiation Factor 9--administration & dosageHumansOvarian Follicle--metabolismOvary--metabolismSheepVitrification