Álvarez, J.F., López, J.M.G., Chávez, A.M.G., Acosta, B.V., Hénandez, D.A. Álvarez, Pascual, S.R. and Vázquez, A.A.G. 2017. The use of ultrasonographic and Alvarado scores in evaluating abdominal pain suggestive of acute appendicitis. International Surgery Journal. 4, 2 (Jan. 2017), 757–763. DOI:https://doi.org/10.18203/2349-2902.isj20170228.