2023 External validation of a novel electronic risk score for cancer-associated thrombosis in a comprehensive cancer center. Ang Li, Las Pozas Giordana De, Clark R. Andersen, Chijioke C. Nze, Katy M. Toale, Emily M. Milner, Nathanael R. Fillmore, Elizabeth Yu Chiao, Hernandez Cristhiam Rojas, Michael H. Kroll, Kelly W. Merriman‡, Christopher R. Flowers‡‡ Equal senior authorship American Journal of Hematology98(7), 1052-1057 Cancer-Associated Thrombosis Electronic Health Records External Validation Model Validation Natural Language Processing