title: Comments on Schwaibold's "Sirenomelia and Anencephaly in One of Dizygotic Twins".
authors.forename: R A
authors.initials: RA
authors.lastname: Pfeiffer
authors.forename: V
authors.initials: V
authors.lastname: Becker
mesh_terms: D000757:Anencephaly / Q000235:genetics*; D004200:Diseases in Twins; D004480:Ectromelia / Q000235:genetics*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D014427:Twins; D014429:Twins, Dizygotic