TERT and cholangiocarcinoma: Serum proteomic profiles were evaluated in patients with intrahepatic CCA and the overall population.<h4>Results</h4>In exploratory analyses, the telomerase reverse transcriptase <i>(TERT)</i> rs10069690 T allele was associated with a reduced risk of intrahepatic CCA (T allele vs C/C homozygotes: adjusted OR 0.824 (95% CI 0.713 to 0.951), p=0.008).