However, PSA-NCAM expression was significantly associated to OS [median OS: 20.8 months (CI:14.2-27.4) in patients with PSA-NCAM GBM content ≤ 10 pg/μg of protein versus 12.2 months (CI:11.0-13.5) in the others; p = 0.04, n = 56] (Figure 3A). The gene discussed is NCAM1; the disease is glioblastoma.