A Sensitive Method for Determination of Platycodin D in Rat Plasma Using Liquid Chromatography/Tandem Mass Spectrometry and its Application to a Pharmacokinetic Study - Pei, Lixia; Bao, Yuanwu; Ma, Lei; Wang, Qiqi; Ye, Yiyi; Han, Xianghui; Liu, Sheng; Chen, Xiuping (Planta Medica, 2012)