Chumkong, N. , Khantee, P. and Laoprasopwattana, K. 2022. 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. 40, 2 (Mar. 2022), 173–180. DOI:https://doi.org/10.31584/jhsmr.2021826.