Large-Scale Isolation of Flavonolignans from Silybum marianum Extract Affords New Minor Constituents and Preliminary Structure-Activity Relationships - Sy-Cordero, Arlene; Graf, Tyler N.; Nakanishi, Yuka; Wani, Mansukh C.; Agarwal, Rajesh; Kroll, David J.; Oberlies, Nicholas H. (Planta Medica, 2010)