Kozic, Slavko, Gordan Gulan, Damir Matovinovic, Boris Nemec, Branko Sestan, and Jagoda Ravlic-Gulan. 1997. “Femoral Anteversion Related to Side Differences in Hip Rotation: Passive Rotation in 1, 140 Children Aged 8–9 Years”. Acta Orthopaedica 68 (6):533-36. https://doi.org/10.3109/17453679708999021.