Infusion of High-Dose (6R,S)-5-Formyltetrahydrofolate (Le... Straw JA, Newman EM (1988) Pharmacokinetic analysis of (6S)-5-formyltetrahydrofolate (1-CF), (6R)-5-formyltetrahydrofolate (d-CF), and 5-methyltetrahydrofolate (5-CH 3 -THF) in patients receiving constant i. v. infusion...