Alí-Morell, Osama J., et al. “Relationship Between Radiological Measurements and Hip Morphology in Subjects With Cerebral Palsy: Case Series”. Revista Colombiana De Ortopedia Y Traumatología, vol. 32, no. 2, Feb. 2018, pp. 128-33, doi:10.1016/j.rccot.2017.09.001.