ELF4 and glioblastoma: In contrast, median protein expression of CD44, ELF4, Nanog, and Nestin was significantly increased in GBM compared to nonmalignant brain from 0.88 (Min–Max: 0.29–1.84) to 7.31 (Min–Max: 0.57–45.34) for CD44, from 0.91 (Min–Max: 0.66–1.77) to 1.84 (Min–Max: 0.19–29.28) for ELF4, from 0.93 (Min–Max: 0.02–2.93) to 1.17 (Min–Max: 0.01–199.3) for Nanog, and from 0.94 (Min–Max.: 0.05–2.29) to 5.01 (Min–Max: 0.01–295.2) for Nestin, respectively.