Osteosarcoma and Retinoblastoma: A Shared Chromosomal Mechanism Revealing Recessive PredispositionMarc F. Hansen, Alex Koufos, Brenda L. Gallie, Robert A. Phillips, Oystein Fodstad, Anton Brogger, Tobias Gedde-Dahl and Webster K. Cavenee · Proceedings of the National Academy of Sciences of the United States of America · 1985