title: Origin of amniotic fluid group-specific component.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D001798:Blood Proteins / Q000032:analysis*; D005260:Female; D006801:Humans; D007122:Immunoelectrophoresis; D010641:Phenotype; D011110:Polymorphism, Genetic; D011247:Pregnancy; D014168:Transferrin / Q000032:analysis
chemical_list: D001798:Blood Proteins; D014168:Transferrin