title: Small sac size as a predictor of poor fetal outcome.
authors.forename: F
authors.initials: F
authors.lastname: Giacomello
mesh_terms: D004622:Embryo, Mammalian / Q000000981:diagnostic imaging*; D005314:Embryonic and Fetal Development; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011379:Prognosis; D016216:Ultrasonography, Prenatal