Korkut, Mustafa, et al. “Accuracy of Alvarado, Eskelinen, Ohmann, RIPASA and Tzanakis Scores in Diagnosis of Acute Appendicitis; A Cross-Sectional Study”. Archives of Academic Emergency Medicine, vol. 8, no. 1, Mar. 2020, p. e20, doi:10.22037/aaem.v8i1.559.