Mukhopadhyay, B. B., and H. Bhattacharjya. “Set Theoretic Approach to the Concept of Net Sensitivity and Net Specificity in Screening Test Results”. International Journal Of Community Medicine And Public Health, vol. 5, no. 5, Apr. 2018, pp. 1690-3, doi:10.18203/2394-6040.ijcmph20181673.