Khan, M. Imran, Sajid Bashir Soofi, R. Leon Ochiai, Mohammad Jawed Khan, Shah Muhammad Sahito, Mohammad Atif Habib, Mahesh K Puri, et al. 2012. “Epidemiology, Clinical Presentation, and Patterns of Drug Resistance of Salmonella Typhi in Karachi, Pakistan”. The Journal of Infection in Developing Countries 6 (10):704-14. https://doi.org/10.3855/jidc.1967.