Davda, K., Smyth, N., Cobb, J. P., & Hart, A. J. (2016). 2D measurements of cup orientation are less reliable than 3D measurements (Acta Orthop 2015; 86 (4): 485–90.). Acta Orthopaedica, 87(3), 314–317. https://doi.org/10.3109/17453674.2016.1156932