Interferon-γ Secretion Enzyme-Linked Immunospot Assay Determined Among Human T Cell Lymphotropic Virus Type 1-Infected Subjects: A Potential Laboratory Marker for Early HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis Diagnosis - Apoliano, Carlos Fernando; Assone, Tatiane; Maciel da Silva, Bosco Christiano; Andreetta Corral, Marcelo; de Oliveira, Augusto Cesar Penalva; Fonseca, Luiz Augusto Marcondes; Duarte, Alberto José da Silva; Tang, Yuyang; Casseb, Jorge (AIDS research and human retroviruses, 2020)