title: Neural-tube defects (N.T.D.) and HLA.
mesh_terms: D000017:ABO Blood-Group System; D000022:Abortion, Spontaneous / Q000209:etiology; D000483:Alleles; D001787:Blood Group Incompatibility / Q000235:genetics; D005260:Female; D005828:Genetics, Population; D006801:Humans; D009436:Neural Tube Defects / Q000209:etiology*; D011247:Pregnancy; D044469:Racial Groups
chemical_list: D000017:ABO Blood-Group System