HOXB9 and adrenal cortex carcinoma: An analysis of the correlation of HOX gene expression with the expression of all other HOX members in the TCGA ACC dataset showed HOXB9 expression significantly correlated with the expression of these HOX genes (HOXC9r = 0.377; P = 0.000604, HOXC10r = 0.474; P = 9.81−06, HOXC11r = 0.427; P = 8.60−05, HOXC13r = 0.455; P = 1.16−06 and HOXD13r = 0.453; P = 2.69−05) (Supplementary Tables S7, S8 and Supplementary Fig. S6).