DDR1 and hepatocellular carcinoma: DDR1 was found to be significantly (p < 0.001) upregulated in HCC tissues (mean 8.49, SE 2.03, 95% CI 4.02-12.95, range 2.45-23.36) compared to matched NTs (mean 2.3, SE 0.58, 95% CI 1.02-3.57, range 0.74-8.15) in 12 of 23 (52.2%) patients (Figure 1B).