title: Studies in Down's syndrome. IV. Investigations on the "Xh" factor.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000818:Animals; D000941:Antigens; D002648:Child; D002675:Child, Preschool; D004314:Down Syndrome / Q000097:blood* / Q000276:immunology; D004586:Electrophoresis; D005260:Female; D006041:Goats / Q000276:immunology; D006801:Humans; D007106:Immune Sera; D005779:Immunodiffusion; D008607:Intellectual Disability / Q000097:blood; D008297:Male; D008875:Middle Aged; D012712:Serum Globulins; D012737:Sex Factors
chemical_list: D000941:Antigens; D007106:Immune Sera; D012712:Serum Globulins