Rölfing, J. D. ., Jensen, R. D. ., & Paltved, C. (2020). HipSim — hip fracture surgery simulation utilizing the Learning Curve–Cumulative Summation test (LC-CUSUM). Acta Orthopaedica, 91(6), 669–674. https://doi.org/10.1080/17453674.2020.1777511