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Progression-free survival (PFS) by baseline risk factor. Vertical dashed line indicates the hazard ratio (HR) for all patients. The diameter of a circle is proportional to the square root of the number of events. BV, bevacizumab; CA-125, cancer antigen 125; ECOG PS, Eastern Cooperative Oncology Group performance status; GC, gemcitabine plus carboplatin; PL, placebo; SLD, sum of longest diameters.
