A. Martinez-Rondanelli, J. P. Herrera-Escobar, F. Pérsico, A. Sánchez-Vergel, and J. P. Martinez-Cano, “Non-simultaneous bilateral hip fracture. A retrospective cohort study”, Rev. Colomb. Ortop. Traumatol., vol. 31, no. 4, pp. 187–193, Aug. 2017.