Fetomaternal passage of leukocytes and platelets in erythroblastosis fetalis.

By 11. C. Dl sAh, E. MCCUTCHEON, B. I IrrLF AND S. C. Dmuscoi.L M ATERNOFETAL PASSAGE of leimkocytes and platelets has l)eemi demonstrated in man during health1 and disease.2’3 However, mio direct cvidence of fetomaternal passage of these elements has so far been recorded in the literature. The recent use of intrauterine transfusions in the management of erythroblastosis fetahis has afforded the opportunity to stu(IV the transfer of the formed elememits of blood from fetus to mother in humans.