Boland, J. W., Allgar, V., Boland, E. G., Bennett, M. I., Kaasa, S., Hjermstad, M. J., & Johnson, M. (2020). The relationship between pain, analgesics and survival in patients with advanced cancer: a secondary data analysis of the international European palliative care cancer symptom study. European Journal of Clinical Pharmacology, 76(3), 393-402. https://doi.org/10.1007/s00228-019-02801-2