Gielis, W. P. .; Rayegan, H. .; Arbabi, V. .; Brooghani, S. Y. A.; Lindner, C. .; Cootes, T. F. .; Jong, P. A. de .; Weinans, H. .; Custers, R. J. H. Predicting the Mechanical hip–knee–ankle Angle Accurately from Standard Knee Radiographs: A Cross-Validation Experiment in 100 Patients. ActaO 2020, 91, 732–737.