PT - JOURNAL ARTICLE AU - Feng Zuo AU - Norio Nakamura AU - Teruaki Akao AU - Masao Hattori TI - Pharmacokinetics of Berberine and Its Main Metabolites in Conventional and Pseudo Germ-Free Rats Determined by Liquid Chromatography Ion Trap Mass Spectrometry AID - 10.1124/dmd.106.011361 DP - 2006 Sep 06 TA - Drug Metabolism and Disposition 4099 - http://dmd.aspetjournals.org/content/early/2006/09/06/dmd.106.011361.short 4100 - http://dmd.aspetjournals.org/content/early/2006/09/06/dmd.106.011361.full