Horn, Joachim, et al. “Limb Lengthening and Deformity Correction With Externally Controlled Motorized Intramedullary Nails: Evaluation of 50 Consecutive Lengthenings”. Acta Orthopaedica, vol. 90, no. 1, Oct. 2018, pp. 81-87, doi:10.1080/17453674.2018.1534321.