title: The biological activity of 4a-hydroxy-5-methyltetrahydrofolic acid in the rat [proceedings].
mesh_terms: D000818:Animals; D002250:Carbon Radioisotopes; D007553:Isotope Labeling; D008297:Male; D051381:Rats; D013763:Tetrahydrofolates / Q000378:metabolism*; D014018:Tissue Distribution
chemical_list: D002250:Carbon Radioisotopes; D013763:Tetrahydrofolates; C020911:4a-hydroxy-5-methyltetrahydrofolic acid