title: Relationship of small-for-dates sac size to crown-rump length and spontaneous abortion in patients with a known date of ovulation.
authors.forename: I K
authors.initials: IK
authors.lastname: Rossavik
mesh_terms: D000022:Abortion, Spontaneous; D004622:Embryo, Mammalian / Q000033:anatomy & histology*; D005260:Female; D005865:Gestational Age; D006801:Humans; D010060:Ovulation; D011247:Pregnancy; D013997:Time Factors