TY - RPRT TI - Age-related changes in qEEG during cognitive tasks. AU - M M Widagdo AU - J M Pierson AU - R D Helme PY - 1998 DO - 10.3109/00207459809000650 UR - https://pubmed.ncbi.nlm.nih.gov/9845017/ ID - 9845017 ER -