Characterization of Flavonoids in the Ethomedicine Fordiae Cauliflorae Radix and Its Adulterant Millettiae Pulchrae Radix by HPLC-DAD-ESI-IT-TOF-MSn oleh Lan-Lan Fan, Tao Yi, Feng Xu, Ya-Zhou Zhang, Jian-Ye Zhang, Dian-Peng Li, Yang-Jiao Xie, Shan-Ding Qin, Hu-Biao Chen