title: Chromosome studies in patients with retinoblastoma.
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics; D002648:Child; D002875:Chromosomes; D003228:Conjunctiva; D046508:Culture Techniques; D004314:Down Syndrome / Q000235:genetics; D005134:Eye Neoplasms / Q000235:genetics*; D006801:Humans; D007621:Karyotyping; D008214:Lymphocytes; D008854:Microscopy, Electron; D012175:Retinoblastoma / Q000235:genetics*; D012867:Skin