Mến, N.T., Phượng, L.T. and Hương, N.T. 2026. Clinical and laboratory characteristics by age group in children with urinary tract infection in Vietnam National Children’s hospital. Journal of Medical Research. 204, 7 (Aug. 2026), 735-743. DOI:https://doi.org/10.52852/tcncyh.v204i7.5617.