title: Letter: Testing for Tay-Sachs heterozygotes.
mesh_terms: D000032:Abortion, Therapeutic; D000653:Amniotic Fluid / Q000166:cytology; D001800:Blood Specimen Collection; D002478:Cells, Cultured; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D005817:Genetic Counseling; D005865:Gestational Age; D006579:Heterozygote; D006596:Hexosaminidases / Q000097:blood; D006801:Humans; D007585:Jews; D007962:Leukocytes / Q000201:enzymology; D008064:Lipidoses / Q000097:blood / Q000175:diagnosis* / Q000201:enzymology / Q000235:genetics / Q000473:pathology; D008297:Male; D011247:Pregnancy; D011296:Prenatal Diagnosis
chemical_list: D006596:Hexosaminidases