Tsagozis, Panagiotis, Michael Parry, and Robert Grimer. 2018. “High Complication Rate After Extendible Endoprosthetic Replacement of the Proximal Tibia: A Retrospective Study of 42 Consecutive Children”. Acta Orthopaedica 89 (6):678-82. https://doi.org/10.1080/17453674.2018.1534320.