Glial activation among individuals with neurological post-acute sequelae of coronavirus disease 2019: A positron emission tomography study of brain fog using [18F]-FEPPA - Sean A.P. Clouston; Paul Vaska; Tesleem Babalola; John Gardus, III; Chuan Huang; Nicola Soriolo; Ashley Fontana; Christine DeLorenzo; Ramin Parsey; Benjamin J. Luft (Brain, Behavior, & Immunity - Health, 2025)