title: Further observations on Kell blood groups in families ascertained via a mongol propositus.
mesh_terms: D001699:Biometry; D001789:Blood Group Antigens; D002874:Chromosome Mapping; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000175:diagnosis / Q000235:genetics*; D005260:Female; D006801:Humans; D007106:Immune Sera; D008297:Male
chemical_list: D001789:Blood Group Antigens; D007106:Immune Sera