Evaluation of normal gestational sac growth: appearance of embryonic heartbeat and embryo body movements using the transvaginal technique.
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Daya
D004622:Embryo, Mammalian / Q000502:physiology*; D005321:Extraembryonic Membranes / Q000254:growth & development*; D005260:Female; D005324:Fetal Movement; D006340:Heart Rate, Fetal; D006801:Humans; D008722:Methods; D011247:Pregnancy; D014621:Vagina