Corrigendum: Vitamin D, Folate, and Cobalamin Serum Concentrations Are Related to Brain Volume and White Matter Integrity in Urban Adults - Beydoun, May A.; Shaked, Danielle; Hossain, Sharmin; Beydoun, Hind A.; Katzel, Leslie I.; Davatzikos, Christos; Gullapalli, Rao P.; Seliger, Stephen L.; Erus, Guray; Evans, Michele K.; Zonderman, Alan B.; Waldstein, Shari R. (Frontiers in Aging Neuroscience, 2021)