Olszewski, Jan, WÅ‚odzimierz Samborski, and SÅ‚awomir Bartkowiak. 2014. “Neopterin-Inhibitor of Dihydrofolate Reductase and Hypothetical Action in the Human Body”. JOURNAL OF ADVANCES IN BIOLOGY 6 (1):741-48. https://doi.org/10.24297/jab.v6i1.5461.