title: Chromosome studies in twelve patients with retinoblastoma.
mesh_terms: D000293:Adolescent; D000782:Aneuploidy; D002648:Child; D002842:Chromatids; D002869:Chromosome Aberrations / Q000235:genetics; D025063:Chromosome Disorders; D005134:Eye Neoplasms / Q000235:genetics*; D005260:Female; D006801:Humans; D006814:Hungary; D007621:Karyotyping; D007962:Leukocytes / Q000166:cytology; D008297:Male; D012175:Retinoblastoma / Q000235:genetics*; D012730:Sex Chromosomes