Bjerkreim, Ingjald, Bjørg Carlsen, and Eva Korsell. “Preoperative Cotrel Traction in Idiopathic Scoliosis”. Acta Orthopaedica 53, no. 6 (January 1, 1982): 901–905. Accessed May 7, 2026. https://actaorthop.org/actao/article/view/28763.