SF3B2 and neoplasm: On the other hand, SF3B2 expression positively correlated with the neoplasm histologic grade (q = 5.636e−6, Additional file 1: Fig. S1A) but not with HPV status (q = 0.145, Additional file 1: Fig. S1B), alcohol consumption frequency (q = 0.322, Additional file 1: Fig. S1C), or cigarette smoking history (q = 0.354, Additional file 1: Fig. S1D).