GOTO, Sumio; UHTHOFF, Hans K. Notochord and spinal malformations. Acta Orthopaedica, [S. l.], v. 57, n. 2, p. 149–153, 1986. DOI: 10.3109/17453678609000890. Disponível em: https://actaorthop.org/actao/article/view/23083. Acesso em: 22 apr. 2026.