Johannesdottir, Katrin B, et al. “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, vol. 93, Jan. 2022, pp. 117-23, doi:10.2340/17453674.2021.843.