Welcome to Chinese Journal of Clinical Pharmacology and Therapeutics,Today is Chinese
Determination of five metabolites of caffeine in urine to assess three drugmetabolying biotransformation enzyme activities by HPLC with direct injection method
LI Jun, PENG Xiang-qian, ZHANG Jian, GUO Rui-chan
Chinese Journal of Clinical Pharmacology and Therapeutics . 2005, (7): 768 -771 .