Corrigendum: Sacral Curvature in Addition to Sacral Ratio to Assess Sacral Development and the Association With the Type of Anorectal Malformations - Chen, Zhen; Zheng, Lingling; Zhang, Minzhong; Zhang, Jie; Kong, Ruixue; Chen, Yunpei; Liang, Zijian; Levitt, Marc A.; Wei, Chin-Hung; Wang, Yong (Frontiers in Pediatrics, 2022)