Intervention Study Publications for the metabolite 1-methylxanthine with food phytochemical Caffeine
- Campbell ME, Spielberg SP, Kalow W: A urinary metabolite ratio that reflects systemic caffeine clearance. Clin Pharmacol Ther. 1987 Aug;42(2):157-65. doi: 10.1038/clpt.1987.126. [PubMed:3608349 ]