Kristensen, M. T., Foss, N. B., Ekdahl, C., & Kehlet, H. (2010). Prefracture functional level evaluated by the New Mobility Score predicts in-hospital outcome after hip fracture surgery. Acta Orthopaedica, 81(3), 296–302. https://doi.org/10.3109/17453674.2010.487240