Venegas-Sanabria, L. C.; Lozano-Rengifo, M. J.; Cepeda-Alonso, L.; Chavarro-Carvajal, D. A. In-Hospital Complications in Elderly Patients With Hip Fracture: Cross-Sectional Study to Determine the Associated Factors. Rev. Colomb. Ortop. Traumatol. 2019, 32, 245-250.