Corrigendum: Pretreatment level of serum sialic acid predicts both qualitative and quantitative bone metastases of prostate cancer - Sun, Jingtao; Tian, Tian; Wang, Naiqiang; Jing, Xuehui; Qiu, Laiyuan; Cui, Haochen; Liu, Zhao; Liu, Jikai; Yan, Lei; Li, Dawei (Frontiers in Endocrinology, 2024)