Engholm, Gerda, Mette Gislum, Freddie Bray, and Timo Hakulinen. 2010. “Trends in the Survival of Patients Diagnosed With Cancer in the Nordic Countries 1964–2003 Followed up to the End of 2006. Material and Methods”. Acta Oncologica 49 (5):545-60. https://doi.org/10.3109/02841861003739322.