Imaging and histological study on the morphological development of the ossification center of the base of odontoid process in children. - Ren X; Yi Y; Qu X; Yin Z; Li L; Shen X; Duan B; Zhang S; Yan S (European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2026)