Johannesdottir, K. B., Kehlet, H., Petersen, P. B., Aasvang, E. K., Sørensen, H. B. D., Jørgensen, C. C., & Centre for Fast-track Hip and Knee Replacement Collaborative Group, on behalf of the. (2022). Machine learning classifiers do not improve prediction of hospitalization > 2 days after fast-track hip and knee arthroplasty compared with a classical statistical risk model. Acta Orthopaedica, 93, 117–123.