Science Magazine | AAAS: Science Translational Medicine Follow SV2A-PET imaging uncovers cortical synapse loss in multiple sclerosis | Science Translational Medicine SV2A-PET reveals cortical synapse loss in multiple sclerosis (MS), highlighting a potential approach for unmasking gray matter pathology. https://www.science.org/doi/10.1126/scitranslmed.adt5585 science.org