OS of the 86 patients classified according to their combined

P53 and bcl-2 status. Kaplan-Meier analysis demonstrating that the detection of a band shift at P53 in patients with bcl-2–expressing tumors identifies a small group of patients with a very poor outcome. Mut cases are defined as cases with a detectable band shift by SSCP-PCR. Nonmut cases are defined as cases with no detectable band shift.