Ambreen Chaudhry, Amna Ali, Aashifa Yaqoob, Ahmed Wali, Razia Fatima, and Aamer Ikram, “Contribution and Effectiveness of Event-Based Surveillance System in Disease Detection and Containment in Pakistan for Year 2017”, PJMR, vol. 58, no. 4, pp. 176–179, Feb. 2020.