“Amplification of Human Lymphotropic Virus 1 (HTLV-1) DNA Segments in Patients With Tropical Spastic Paraparesis and Asymptomatic Seropositive Patients”. Colombia Medica 23, no. 2 (June 30, 1992): 50–56. Accessed February 21, 2026. https://colombiamedica.univalle.edu.co/index.php/comedica/article/view/6339.