THOMMESEN, Per; POULSEN, Jens O. Primary Tumours in the Spine and Pelvis in Adolescents: Clinical and Radiological Features. Acta Orthopaedica, [S. l.], v. 47, n. 2, p. 170–174, 1976. DOI: 10.3109/17453677608989713. Disponível em: https://actaorthop.org/actao/article/view/29351. Acesso em: 14 may. 2026.