1. Tamoxifen can reverse multidrug resistance of colorectal carcinomain vivo
   Li-Zong Shen, 2005, World Journal of Gastroenterology CrossRef
2. Effect of mitogen-activated protein kinase signal transduction pathway on multidrug resistance induced by vincristine in gastric cancer cell line MGC803
   Bo Chen et al, 2004, World Journal of Gastroenterology CrossRef