Grønlie Cameron, Marte, Christian Kersten, Ingvild Vistad, Sophie Fosså, and Marianne Grønlie Guren. 2014. “Palliative Pelvic Radiotherapy of Symptomatic Incurable Rectal Cancer – a Systematic Review”. Acta Oncologica 53 (2):164-73. https://doi.org/10.3109/0284186X.2013.837582.