Health of singletons born after frozen embryo transfer until early adulthood: a Finnish register study.
STUDY QUESTION: Is the health of singletons born after frozen embryo transfer (FET) comparable to that of singletons born after fresh embryo transfer (ET) until early adulthood? SUMMARY ANSWER: The health of singletons born after FET does not differ from that of singletons born after fresh ET. WHAT IS KNOWN ALREADY: The differences in perinatal outcomes of children born after FET and fresh ET are well known. FET is associated with an increased risk of large-for-gestational-age but diminished risks of preterm birth (PTB), small-for-gestational-age and decreased perinatal mortality compared to
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