SPP1 and ovarian cancer: Only high expression of MEOX1(205619_s_at), secreted phosphoprotein 1(SPP1, 209875_s_at), and procalcitonin β2 (PCDHB2, 231725_at) were found to be significantly associated with adverse overall survival (OS) and progression-free survival (PFS) of ovarian cancer patients, as determined by the prognostic analysis via the Kaplan-Meier plotter (Table 2).