Wang, Ziwei, Na Zhou, Jianqi Zhao, and Xin Zhang. “Sodium Azulene Sulfonate Reverses Multidrug Resistance in K562/A02 Cells”. Cellular and Molecular Biology 65, no. 7 (September 30, 2019): 105–110. Accessed April 29, 2024. https://cellmolbiol.org/index.php/CMB/article/view/3111.