Viana, Graça Maria de Castro, et al. “ INTERFERON BETA-1A TREATMENT IN HTLV-1-ASSOCIATED MYELOPATHY TROPICAL SPASTIC PARAPARESIS: A CASE REPORT ”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 56, no. 5, Sept. 2014, pp. 443-5, https://revistas.usp.br/rimtsp/article/view/87541.