Negida, Ahmed, Nadien Fahim, and Yasmin Negida. “Sample Size Calculation Guide - Part 4: How to Calculate the Sample Size for a Diagnostic Test Accuracy Study Based on Sensitivity, Specificity, and the Area Under the ROC Curve”. Advanced Journal of Emergency Medicine 3, no. 3 (May 19, 2019): e33. Accessed October 21, 2019.