Pellín A, Boix-Ferrero J, Carpio D, López-Terrada D, Carda C, Navarro S, Peydró-Olaya A, Triche TJ, Llombart-Bosch A. Molecular alterations of the RB1, TP53, and MDM2 genes in primary and xenografted human osteosarcomas. Diagn Mol Pathol. 1997 Dec;6(6):333–41. doi: 10.1097/00019606-199712000-00005. PMID: 9559293.