Electrocardiographic localization of peripherally inserted central catheter tip position in critically ill patients with advanced cancer: An application study oleh Yong‐Hong Chai, Su‐Ya Han, Yu‐Xin Zhu, Jin‐Jie Hou, Xiao‐Hui Guan, Xin‐Xin Yin, Feng‐Ying Zhang, Qin‐Zeng Qiao, Ling‐Min Han, JiangHua Li