title: Twin pregnancies in women in an alpha-fetoprotein screening program.
authors.affiliation: Department of Radiology, University of California, Davis Medical Center, Sacramento 95817.
authors.forename: J P
authors.initials: JP
authors.lastname: McGahan
authors.forename: B
authors.initials: B
authors.lastname: Mahony
mesh_terms: D000013:Congenital Abnormalities / Q000175:diagnosis / Q000000981:diagnostic imaging; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D005330:Fetofetal Transfusion / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D007231:Infant, Newborn; D010920:Placenta / Q000000981:diagnostic imaging; D011247:Pregnancy; D011256:Pregnancy Outcome; D011272:Pregnancy, Multiple / Q000097:blood*; D011296:Prenatal Diagnosis; D014427:Twins; D016216:Ultrasonography, Prenatal; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D000509:alpha-Fetoproteins