PCOLCE and neuroblastoma: Moreover, bioinformatics analysis performed via tools implemented in R2 (http://r2.amc.nl, http://r2platform.com) with the Versteeg 88 dataset30 revealed that high levels of PCOLCE mRNA were significantly correlated with decreased overall and relapse-free survival rates in NB patients (Supplementary Fig. S23, S24 online).