Intestinal and Blood-Brain Barrier Permeability of Ginkgolides and Bilobalide: In Vitro and In Vivo Approaches - Madgula, Vamsi L. M.; Avula, Bharathi; Yu, Young-Beob; Wang, Yan-Hong; Tchantchou, Flaubert; Fisher, Scott; Luo, Yuan; Khan, Ikhlas A.; Khan, Shabana I. (Planta Medica, 2010)