Krieger T, Pearson I, Bell J, Doherty J, Robbins P. Targeted literature review on use of tumor mutational burden status and programmed cell death ligand 1 expression to predict outcomes of checkpoint inhibitor treatment. Diagn Pathol. 2020 Jan 30;15(1):6. doi: 10.1186/s13000-020-0927-9
Calvet X, Navarro M, Gil M, Mas P, Rivero E, Sanfeliu I. Seroprevalence and epidemiology of Helicobacter pylori infection in patients with cirrhosis. J Hepatol. 1997 Jun;26(6):1249-54.