Ahmad, T., Waheed, Y., Tahir, S., Safi, S. Z., Fatima, K., Afzal, M. S., … Qadri, I. (2010). Frequency of HEV contamination in sewerage waters in Pakistan. The Journal of Infection in Developing Countries, 4(12), 842–845. https://doi.org/10.3855/jidc.612