title: RETINOBLASTOMA OCCURRING IN ONE OF A PAIR OF IDENTICAL TWINS.
mesh_terms: D001789:Blood Group Antigens; D004200:Diseases in Twins; D006801:Humans; D009154:Mutation; D009369:Neoplasms / Q000453:epidemiology*; D012175:Retinoblastoma; D014430:Twins, Monozygotic; D014481:United States
chemical_list: D001789:Blood Group Antigens
keywords: BLOOD GROUPS; DISEASES IN TWINS; MUTATION; NEOPLASM STATISTICS; RETINOBLASTOMA; UNITED STATES