Peippo, Maija H., Samu Kurki, Hanna Seppänen, Riitta Lassila, and Olli Carpén. 2020. “CA 19-9 Doubling Time in Pancreatic Cancer As a Predictor of Venous Thromboembolism: A Hospital Database Study”. Acta Oncologica 59 (2):237-41. https://doi.org/10.1080/0284186X.2019.1679881.