title: Tay-Sachs disease in Quebec: evidence for a geographic aggregate in the French-Canadian population and identification of a new retardation syndrome with possible linkage to the Tay-Sachs gene.
mesh_terms: D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D003937:Diagnosis, Differential; D005006:Ethnicity; D005260:Female; D005602:France; D005843:Geography; D006596:Hexosaminidases / Q000378:metabolism; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis / Q000453:epidemiology* / Q000235:genetics; D008064:Lipidoses / Q000201:enzymology / Q000453:epidemiology* / Q000235:genetics; D008297:Male; D011792:Quebec
chemical_list: D006596:Hexosaminidases