title: Gm antigenic titres in adults with Down's syndrome (mongolism), non-mongoloid mental defectives and healthy blood donors.
mesh_terms: D000293:Adolescent; D000328:Adult; D001782:Blood Donors; D004314:Down Syndrome / Q000276:immunology*; D005260:Female; D006385:Hemagglutination Inhibition Tests; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D005779:Immunodiffusion; D007141:Immunoglobulin Fc Fragments / Q000032:analysis*; D007074:Immunoglobulin G / Q000032:analysis*; D008607:Intellectual Disability / Q000276:immunology*; D007519:Isoantigens / Q000032:analysis; D008297:Male
chemical_list: D007141:Immunoglobulin Fc Fragments; D007074:Immunoglobulin G; D007519:Isoantigens