B‐cell maturation antigen chimeric antigen receptor‐T therapy alleviated heart failure in patients with multiple myeloma oleh Yunhong Wang, Ke Zhang, Xiaohui Suo, Ning Meng, Yuanrui Gu, Yilang Qin, Yanxia Tu, Xiaohui Zhang, Guofeng Sun, Jiaojiao Ji, Weichun Wu, Yuqi Cai, Kai Yang, Chenxi Ouyang, Junyuan Qi