RHD and anemia (phenotype): We could not compare chemokines from RhD-negative alloimmunized women according to (i) RhD status; (ii) fetal sex; (iii) fetal anemia; (iv) neonatal anemia because of the small number of subjects; however, this is a good objective for future research maybe in a multicentric study with more RhD-alloimmunized mothers and fetus involved.