Twin reversed arterial perfusion (TRAP) sequence: a study of 14 twin pregnancies with acardius.
D000015:Abnormalities, Multiple / Q000209:etiology / Q000235:genetics*; D004200:Diseases in Twins; D005260:Female; D006330:Heart Defects, Congenital / Q000235:genetics*; D006801:Humans; D007231:Infant, Newborn; D007621:Karyotyping; D011247:Pregnancy; D011272:Pregnancy, Multiple; D014427:Twins; D014469:Umbilical Arteries / Q000002:abnormalities*