FN1 and colorectal carcinoma: Wang et al. detected no significant difference in the relative abundance of salivary Fn in CRC (9.91 [IQR 8.799–11.216]) than in healthy controls (10.125 (IQR 9.1584–11.4306); p = 0.527) measured as the difference between total bacteria 16 S rRNA Cq and Fn 16 S rRNA Cq values.