Xu, Ye Clinical outcomes for various causes of infertility with natural-cycle in vitro fertilization combined with in vitro maturation of immature oocytes. [electronic resource] - Fertility and sterility Jul 2010 - 777-80 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1556-5653 Standard No.: 10.1016/j.fertnstert.2009.09.060 doi Subjects--Topical Terms: Abortion, SpontaneousAdultChorionic Gonadotropin--administration & dosageEmbryo TransferFemaleFertilization in Vitro--methodsHumansInfertility, Female--etiologyMenstrual Cycle--physiologyOocyte Retrieval--methodsOocytes--cytologyOvarian Follicle--diagnostic imagingPregnancyPregnancy OutcomeReproductive Control Agents--administration & dosageUltrasonography