MYCN and neuroblastoma: Using the median RNA expression as the cut‐off, Kaplan‐Meier survival analysis showed that high levels of PRKCQ‐AS1, MSI2 or BMX expression in the total cohort of 476 neuroblastoma tissues (Figure 7A–C), as well as in the 405 MYCN‐nonamplified human neuroblastoma tissues (Figure 7D–F), were associated with poor patient prognosis.