TY - GEN AU - Hagemeijer,A AU - Smit,E M TI - Partial trisomy 21. Further evidence that trisomy of band 21q22 is essential for Down's phenotype SN - 0340-6717 PY - 1977///1125 KW - Centromere KW - Child KW - Chromosomes, Human, 21-22 and Y KW - Down Syndrome KW - genetics KW - Female KW - Humans KW - Intellectual Disability KW - Phenotype KW - Translocation, Genetic KW - Trisomy N1 - Publication Type: Case Reports; Journal Article UR - https://doi.org/10.1007/BF00295803 ER -