1. Adducci, J.E.: Chorioangioma of the placenta: causing fetal distress. Minn. Med. 58: 820–821, 1975.
2. Altshuler, G.: Chorangiosis: an important placental sign of neonatal morbidity and mortality. Arch. Pathol. Lab. Med. 108: 71–74, 1984.
3. Arodi, J., Auslender, R., Atad, J., and Abramovici, H.: Case report: giant chorioangioma of the placenta. Acta Obstet. Gynecol. Scand. 64: 91–92, 1985.
4. Asadourian, L.A., and Taylor, H.B.: Clinical significance of placental hemangiomas. Obstet. Gynecol. 31: 551–555, 1968.
5. Barry, F.E., McCoy, C.P., and Callahan, W.P.: Hemangioma of the umbilical cord. Am. J. Obstet. Gynecol. 62: 675–680, 1951.