title: Acardius (acardius acephalus).
authors.affiliation: Department of Gynecology and Obstetrics, Viborg Sygehus, Viborg, Denmark.
authors.forename: M
authors.initials: M
authors.lastname: Jønler
authors.forename: K L
authors.initials: KL
authors.lastname: Rasmussen
authors.forename: A
authors.initials: A
authors.lastname: Holmskov
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging*; D000328:Adult; D004200:Diseases in Twins / Q000196:embryology*; D005260:Female; D006257:Head / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000196:embryology; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging / Q000196:embryology*; D006801:Humans; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014430:Twins, Monozygotic; D016216:Ultrasonography, Prenatal