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APA Citation
Juliusson, G., Jonasson, J. G., Jonsdottir, S. B., Garcia, H. G., Olafsdottir, E., Möller, P. H., & Björnsson, E. S. (2016). biliary tract malignancies: a population-based study on incidence, prognosis and management of patients. Scandinavian journal of gastroenterology, 51, 1520–1525. http://access.bl.uk/ark:/81055/vdc_100038504432.0x000027