title: A comparative study of the value four ultrasonic methods for prediction of gestational age.
mesh_terms: D000886:Anthropometry / Q000379:methods; D004622:Embryo, Mammalian; D005069:Evaluation Studies as Topic; D005260:Female; D005323:Fetal Monitoring / Q000379:methods*; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D014463:Ultrasonography