Rahman, M., M. A. Chowdhury, M. M. Hoque, M. M. Hossain, and G. M. Suman. “Tramadol Suppository Poisoning in Children of Bangladesh”. Bangladesh Journal of Child Health, vol. 43, no. 3, Oct. 2020, pp. 157-60, doi:10.3329/bjch.v43i3.49572.