Corrigendum: Therapy by physician–pharmacist combination and economic returns for cancer pain management in China: a cost-effectiveness analysis - Lu, Xikui; Zhang, Lu; Huang, Hangxing; Wu, Xiangping; Wang, Zhenting; Huang, Ling; Li, Jingyang; Yu, Huimin; Zhang, Hongyan; Xiao, Jian (Frontiers in Pharmacology, 2023)