title: A ring C7 chromosome in a mentally and physically retarded male with various somatic abnormalities.
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics*; D000328:Adult; D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D008607:Intellectual Disability / Q000473:pathology*; D007621:Karyotyping; D008297:Male