Folseraas T, Boberg KM (February 2016). "Cancer Risk and Surveillance in Primary Sclerosing Cholangitis". Clinics in Liver Disease. 20 (1): 79–98. doi:10.1016/j.cld.2015.08.014. PMID26593292.
Kummen M, Schrumpf E, Boberg KM (August 2013). "Liver abnormalities in bowel diseases". Best Practice & Research. Clinical Gastroenterology. 27 (4): 531–542. doi:10.1016/j.bpg.2013.06.013. PMID24090940.
Folseraas T, Boberg KM (February 2016). "Cancer Risk and Surveillance in Primary Sclerosing Cholangitis". Clinics in Liver Disease. 20 (1): 79–98. doi:10.1016/j.cld.2015.08.014. PMID26593292.
Kummen M, Schrumpf E, Boberg KM (August 2013). "Liver abnormalities in bowel diseases". Best Practice & Research. Clinical Gastroenterology. 27 (4): 531–542. doi:10.1016/j.bpg.2013.06.013. PMID24090940.