@article{2953615, title = "A315 Addressing Biased Survival Due To Crossover in Trials", author = "Morgan, GJ and Knight, RD and Ishak, KJ and Drayson, MT and Dimopoulos, MA and Weber, DM and Augustson, B and Child, JA and Begum, G and Dunn, J and others", journal = "Clinical Lymphoma Myeloma and Leukemia", year = "2009", number = "9", pages = "S50--S51" }