Amphiphilic Copolymeric Micelles for Doxorubicin and Curcumin Co-delivery to Reverse Multidrug Resistance in Breast CancerLi Lv Kaifeng Qiu Xiaoxia Yu Chuxiong Chen Fengchao Qin Yonghui Shi Jiebin Ou Tao Zhang Hua Zhu Junyan Wu Guocheng Li Chunxia Liu