Secondary Outcome(s)
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Ectopic pregnancy
[Time Frame: At 12 weeks of gestation at 12 months after randomization.]
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Low birth weight
[Time Frame: At birth, at 12 months after randomization]
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Very high birth weight
[Time Frame: At birth, at 12 months after randomization]
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Very low birth weight
[Time Frame: At birth, after the completion of the first transfer]
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Admission to NICU
[Time Frame: 7 days after delivery, at 12 months after randomization]
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High birth weight
[Time Frame: At birth, after the completion of the first transfer]
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Iatrogenic preterm birth
[Time Frame: At birth, after the completion of the first transfer]
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Large for gestational age
[Time Frame: At birth, at 12 months after randomization]
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Number of embryo freezing on day 3
[Time Frame: 3 days after oocytes pick-up day in IVF/ICSI]
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Ovarian hyperstimulation syndrome (OHSS)
[Time Frame: At 10 days after hCG injection and 14 days after embryo transfer]
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Preterm delivery
[Time Frame: At birth, at 12 months after randomization]
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Spontaneous preterm birth
[Time Frame: At birth, at 12 months after randomization]
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Clinical pregnancy
[Time Frame: At 7 weeks' gestation]
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Cumulative ongoing pregnancy
[Time Frame: At 12 weeks' gestation at 12 months after randomization. After 12 months, most patients doing IVF have finished all their frozen embryos; therefore, we consider this time point for analyzing the cumulative ongoing pregnancy rate.]
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Genetic and epigenetic analysis of newborn
[Time Frame: 1 day (Prior to the initiation of IVF/IVM) and 1 day ( at the time of delivery)]
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Admission to NICU
[Time Frame: 7 days after delivery after the completion of the first transfer]
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High birth weight
[Time Frame: At birth, at 12 months after randomization]
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Gestational diabetes mellitus
[Time Frame: At 24 weeks of gestation after the completion of the first transfer]
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Small for gestational age
[Time Frame: At birth, after the completion of the first transfer]
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Large for gestational age
[Time Frame: At birth, after the completion of the first transfer]
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Miscarriage
[Time Frame: At 24 weeks of gestation after the completion of the first transfer]
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Fertilization rate per oocyte inseminated/injected
[Time Frame: At 16-18 hours after injected or 17-19 hours after inseminated]
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Birth weight
[Time Frame: At birth, after the completion of the first transfer]
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Cost-effectiveness
[Time Frame: Two year after randomization]
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Antepartum haemorrhage
[Time Frame: From 20 weeks of gestation up to at birth, after the completion of the first transfer]
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Small for gestational age
[Time Frame: At birth, at 12 months after randomization]
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Antepartum haemorrhage
[Time Frame: From 20 weeks of gestation up to at birth, at 12 months after randomization]
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Birth weight
[Time Frame: At birth, at 12 months after randomization]
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Miscarriage
[Time Frame: At 24 weeks of gestation at 12 months after the randomization.]
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Congenital anomaly diagnosed at birth
[Time Frame: At birth, after the completion of the first transfer]
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Fertilization rate per oocyte retrieved
[Time Frame: At 16-18 hours after injected or 17-19 hours after inseminated]
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Gestational age at delivery
[Time Frame: At birth, after the completion of the first transfer]
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Low birth weight
[Time Frame: At birth, after the completion of the first transfer]
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Multiple delivery
[Time Frame: At birth, after the completion of the first transfer]
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Multiple pregnancy
[Time Frame: 7 weeks' gestation after the completion of the first transfer]
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Multiple delivery
[Time Frame: At birth at 12 months after randomization]
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Time from randomization to ongoing pregnancy
[Time Frame: 12 weeks of gestation after the completion of first transfer]
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Gestational diabetes mellitus
[Time Frame: At 24 weeks of gestation at 12 months after randomization]
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Hypertensive disorders of pregnancy
[Time Frame: From 20 weeks of gestation up to at birth after the completion of the first transfer]
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Implantation rate
[Time Frame: At 3 weeks after embryo transferred]
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Multiple pregnancy
[Time Frame: 7 weeks' gestation at 12 months after randomization]
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Ongoing pregnancy
[Time Frame: At 12 weeks' gestation]
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Ongoing pregnancy resulting in live birth obtained from all embryos from the first started treatment cycle
[Time Frame: 12 weeks of gestation at 12 months after randomization]
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Total fertilization failure rate
[Time Frame: At 16-18 hours after injected or 17-19 hours after inseminated]
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Very high birth weight
[Time Frame: At birth, after the completion of the first transfer]
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Number of embryos on day 3
[Time Frame: 3 days after oocytes pick-up day in IVF/ICSI]
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Number of good quality embryo on day 3
[Time Frame: 3 days after oocytes pick-up day in IVF/ICSI]
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Very low birth weight
[Time Frame: At birth, at 12 months after randomization]
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Abnormal fertilization rate
[Time Frame: At 16-18 hours after injected or 17-19 hours after inseminated]
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Congenital anomaly diagnosed at birth
[Time Frame: At birth, at 12 months after randomization]
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Ectopic pregnancy
[Time Frame: At 12 weeks of gestation after the completion of the first transfer]
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Gestational age at delivery
[Time Frame: At birth, at 12 months after randomization]
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Hypertensive disorders of pregnancy
[Time Frame: From 20 weeks of gestation up to at birth at 12 months after randomization]
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Iatrogenic preterm birth
[Time Frame: At birth, at 12 months after randomization]
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Positive pregnancy test
[Time Frame: 14 days after embryo transfer]
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Preterm delivery
[Time Frame: At birth, after the completion of the first transfer]
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Spontaneous preterm birth
[Time Frame: At birth, after the completion of the first transfer]
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