Aguiar Júnior, S., W. P. Andrade, G. Baiocchi, G. C. Guimarães, I. W. Cunha, D. A. Estrada, S. H. Suzuki, L. P. Kowalski, and A. Lopes. “Natural History and Surgical Treatment of Chordoma: A Retrospective Cohort Study”. São Paulo Medical Journal, vol. 132, no. 5, Oct. 2014, pp. 297-02, https://periodicosapm.emnuvens.com.br/spmj/article/view/1236.