Macêdo, Olinda, et al. “ Human T-Cell Lymphotropic Virus Types I and II Infections in a Cohort of Patients With Neurological Disorders in Belém, Pará, Brazil ”. Revista Do Instituto De Medicina Tropical De São Paulo, vol. 46, no. 1, Feb. 2004, pp. 13-17, https://revistas.usp.br/rimtsp/article/view/30774.