Elberg Dengsø, K., Tjørnhøj-Thomsen, T., Oksbjerg Dalton, S., Marcel Christensen, B., Hillingsø, J., & Thomsen, T. (2019). It’s all about the CA-19-9. A longitudinal qualitative study of patients’ experiences and perspectives on follow-up after curative surgery for cancer in the pancreas, duodenum or bile-duct. Acta Oncologica, 58(5), 642–649. https://doi.org/10.1080/0284186X.2018.1562212