Motie, M.-R., A. Soleimani, A. Soltani, and S. I. Hashemy. “Serum Procalcitonin and Lactoferrin in Detection of Acute Appendicitis; A Diagnostic Accuracy Study”. Archives of Academic Emergency Medicine, vol. 6, no. 1, Jan. 2018, p. e51, doi:10.22037/aaem.v6i1.94.