Cavenaghi, V. B., Dobrianskyj, F. M., Olival, G. S. do, Carneiro, R. P. C. D. and Tilbery, C. P. (2017) “Characterization of the first symptoms of multiple sclerosis in a Brazilian center: cross-sectional study”, São Paulo Medical Journal, 135(3), pp. 222–225. Available at: https://periodicosapm.emnuvens.com.br/spmj/article/view/771 (Accessed: 10 March 2025).