The Antihyperglycaemic Activity of Berberine Arises from a Decrease of Glucose Absorption - Pan, Guo-Yu; Huang, Zhi-Jiang; Wang, Guang-Ji; Fawcett, J Paul; Liu, Xiao-Dong; Zhao, Xiao-Chen; Sun, Jian-Guo; Xie, Yuan-Yuan (Planta Medica, 2003)