Chumkong, N. ., P. . Khantee, and K. . Laoprasopwattana. “Procalcitonin Level Can Be a Useful Indicator of When Antibiotics Should Be Stepped up in Children With Cancer and Fever Without Source”. Journal of Health Science and Medical Research, vol. 40, no. 2, Mar. 2022, pp. 173-80, doi:10.31584/jhsmr.2021826.