Assertion: amniotic fluid's cell | /r/HasProperty | antigen
Facets:
Source sentences:
text: When a mother has been previously exposed through prior pregnancies or blood transfusions to “foreign” red blood cells (RBCs), she may develop antibodies to the proteins present on the outer layer of the foreign red cells (antigens).
text: When a mother has been previously exposed through prior pregnancies or blood transfusions to "foreign" red blood cells (RBCs), she may develop antibodies to the proteins present on the outer layer of the foreign red cells (antigens).