1. Intratumoral gene expression of dihydrofolate reductase and folylpoly-c-glutamate synthetase affects the sensitivity to 5-fluorouracil in non-small cell lung cancer
   Kayo Sakon et al, 2021, Discover Oncology CrossRef
2. 5‑Fluorouracil‑based adjuvant chemotherapy improves the clinical outcomes of patients with lymphovascular invasion of upper urinary tract cancer and low expression of dihydropyrimidine dehydrogenase
   Takahiro Narimatsu et al, 2019, Oncology Letters CrossRef
3. Antifolate-based anticancer drugs
   Galal H. Elgemeie et al, 2022, New Strategies Targeting Cancer Metabolism CrossRef