title: The characteristics of a population of Canadian women offered maternal serum alphafetoprotein screening during pregnancy.
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008875:Middle Aged; D009436:Neural Tube Defects / Q000097:blood / Q000175:diagnosis*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D000509:alpha-Fetoproteins / Q000378:metabolism*
chemical_list: D000509:alpha-Fetoproteins