Hsieh, P.-H., Chang, Y.-H., & Shih, C.-H. (2006). Image-guided periacetabular osteotomy: computer-assisted navigation compared with the conventional technique: A randomized study of 36 patients followed for 2 years. Acta Orthopaedica, 77(4), 591–597. https://doi.org/10.1080/17453670610012656