Analysis of the uterus and other organs isolated from 1 representative pregnant mouse of 4 one week after injection of β2GPI-Cy5.5 by eXplore Optix. The signal is visible in the pregnant uterus and in the liver. Note that the signal in the uterus is detected at the implantation sites and umbilical cords while absent in the fetuses. The distribution pattern was similar in all treated animals.