Note: Funding Information: This study was supported by the following funding agencies/ grants: Dr Gurol receives support from grants National Institutes of Health (NIH) NS083711, 5R01NS096730-04, and 5R01AG026484; Dr Biessels receives support from European Union's Horizon 2020 research and innovation programme under grant agreement no. 666881 SVDs@target and Vici Grant 918.16.616 from the Netherlands Organization for Scientific Research; and Dr Polimeni receives support from grants NIH P41-EB015896, R01-EB019437 R01-NS096730, R01-MH111419, and by the Massachusetts General Hospital Athinoula A. Martinos Center for Biomedical Imaging. Funding Information: This study was supported by the following funding agencies/grants: Dr Gurol receives support from grants National Institutes of Health (NIH) NS083711, 5R01NS096730-04, and 5R01AG026484; Dr Biessels receives support from European Union’s Horizon 2020 research and innovation programme under grant agreement no. 666881 SVDs@target and Vici Grant 918.16.616 from the Netherlands Organization for Scientific Research; and Dr Polimeni receives support from grants NIH P41-EB015896, R01-EB019437, R01-NS096730, R01-MH111419, and by the Massachusetts General Hospital Athinoula A. Martinos Center for Biomedical Imaging.