Corrigendum: The Detection of Retina Microvascular Density in Subclinical Aquaporin-4 Antibody Seropositive Neuromyelitis Optica Spectrum Disorders - Chen, Yihong; Shi, Ce; Zhou, Lili; Huang, Shenghai; Shen, Meixiao; He, Zhiyong (Frontiers in Neurology, 2020)