Nakauchi, C.M., et al. “ Antibody to Human T-Lymphotropic Virus in a Patient With Guillain-Barré Syndrome (case Report) ”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 33, no. 4, Aug. 1991, pp. 329-31, https://revistas.usp.br/rimtsp/article/view/28844.