M. Shamshad, D. Sloth Møller, H. Rahbek Mortensen, M. L. . Ehmsen, M. Fuglsang Jensen, and L. Hoffmann, “Bone versus soft-tissue setup in proton therapy for patients with oesophageal cancer”, AO, vol. 61, no. 8, pp. 994–1003, Aug. 2022.