Prognostic impact of tumor size on patients with neuroblastoma in a SEER‐based study oleh Jin‐Xia Wang, Zi‐Yang Cao, Chun‐Xia Wang, Hong‐Yang Zhang, Fei‐Long Fan, Jun Zhang, Xiao‐Yan He, Nan‐Jing Liu, Jiang‐Bin Liu, Lin Zou