M. R. . Vargas Gayón, M. C. . Wilches, and K. . Estrada Orozco, “Radiography of Lumbosacral Column in Acute Lumbar Pain: Use or Overuse? Experience in the Emergency Service of Two High-Complexity Centers in Bogotá, Colombia”, Rev. colomb. radiol., vol. 30, no. 2, pp. 5126–5131, June 2019.