Bay, P., Wain, J., Vinh, H., Chinh, N., Diep, S., Hoa, N., Walsh, A., Parry, C., Ho, V. and White, N. (1998) “Quantitative bacteriology of Typhoid fever in Vietnam”, Medical Journal of Indonesia, 7(Supp1), pp. 274–6. doi: 10.13181/mji.v7iSupp1.1136.