Anastomoses between fetal placental vascular beds of twin infants can be demonstrated quickly and easily with milk or infant formula as the contrast media.
Coen RW, Sutherland JM. Placental Vascular Communications Between Twin Fetuses: A Simplified Technique for Demonstration. Am J Dis Child. 1970;120(4):332–333. doi:10.1001/archpedi.1970.02100090106010
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