Ambreen Chaudhry, Amna Ali, Aashifa Yaqoob, Ahmed Wali, Razia Fatima, and Aamer Ikram. 2020. “Contribution and Effectiveness of Event-Based Surveillance System in Disease Detection and Containment in Pakistan for Year 2017”. Pakistan Journal of Medical Research 58 (4):176-79. https://pjmr.org.pk/index.php/pjmr/article/view/24.