Transplacental fetal-maternal hemorrhage.
D000740:Anemia; D001787:Blood Group Incompatibility; D005260:Female; D005315:Fetal Diseases; D005331:Fetomaternal Transfusion; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic