Milk thistleʼs active components silybin and isosilybin: Novel inhibitors of PXR-mediated CYP3A4 induction - Mooiman, K D; Maas-Bakker, R F; Moret, E E; Beijnen, J H; Schellens, J H; Meijerman, I (Drug Metab Dispos, 2013)