Jairo Gaitan AlfonsoJaime ToroJuliana LagoHelena GrootDaniela RodríguezCarolina Restrepo-AristizábalCésar Franco RuizMariana Torres-BustamanteAngie MontejoLuisa Márquez2026-03-222026-03-22202510.1212/wnl.0000000000210486https://doi.org/10.1212/wnl.0000000000210486https://andeanlibrary.org/handle/123456789/76932This study aims to establish the association between HLA class II alleles and the presence of Neuromyelitis Optica Spectrum Disorder (NMOSD) in a Colombian populationenNeuromyelitis opticaAssociation (psychology)MedicineHuman leukocyte antigenSpectrum disorderGeneticsThe Association of HLA-DQB1*04 and DQB1*03 with Neuromyelitis Optica Spectrum Disorders: A Case-Control Study Considering Genetic Ancestry (P7-8.002)article