title: Retinoblastoma and osteogenic sarcoma in siblings.
mesh_terms: D002648:Child; D005134:Eye Neoplasms / Q000235:genetics*; D005260:Female; D005269:Femur; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D009378:Neoplasms, Multiple Primary; D012516:Osteosarcoma / Q000235:genetics*; D010375:Pedigree; D012175:Retinoblastoma / Q000235:genetics*