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Figure 2. This is a placenta from a TTTS pregnancy treated with reduction amniocenteses that delivered at 27 weeks’ gestation. The donor and recipient sides of the placenta are labeled, and their umbilical cords are seen with plastic clamps attached. This placenta was equally shared by the twins and contained three artery-to-vein connections (arrows) between the twins which joined in the region of the vascular ‘equator.’ (Photo courtesy of Dr. Julian E. De Lia)