In Author Keywords (DE) group, the keywords used at high frequency were: “Tetrandrine,” “Apoptosis,” “Autophagy,” “Fangchinoline,” “NF-Kappa B,” “Multidrug Resistance,” “P-Glycoprotein,” “Pharmacokinetics,” “Proliferation,” “Tetrandrine (Tet).” Keywords used at high frequency in Author Keywords-Plus (ID) group were: “Apoptosis,” “In-Vitro,” “Expression,” “Activation,” “Cells,” “Multidrug-Resistance,” “Inhibition,” “Mechanisms,” “Cancer,” “Growth”. The gene discussed is ABCB1; the disease is cancer.