A. Y. . Denault, C. . Casas, W. . Puentes, R. . Eljaiek, and I. . Iglesias, “Head to toe ultrasound: Current opinion on its role in hemodynamic instability, hypoxemia, oligoanuria and the patient with altered neurological status”, Colomb. J. Anesthesiol., vol. 45, no. 4, pp. 317–326, Oct. 2017.