Collection and harmonization of clinical, pathological and demographic metadata Brain tissue specimens were sourced from two brain banks: the Mount Sinai NIH Neurobiobank (MSSM) (1,042 samples) and the NIMH-IRP Human Brain Collection Core (HBCC) (300 samples). Furthermore, samples were obtained from five prospective cohort studies conducted at the Rush Alzheimer’s Disease Center (RADC) (152 samples)124,125.