Naeem, K., M. Ilyas, U. Fatima, M. Kazi, F. Jehan, Y. Shafiq, M. Taiyab, U. Mehmood, R. Ali, A. K. Zaidi, and M. I. Nisar. “Profile: Karachi Health and Demographic Surveillance System of Pakistan (KHDSS)”. Online Journal of Public Health Informatics, vol. 10, no. 1, May 2018, doi:10.5210/ojphi.v10i1.8953.