?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Ricciardi&rft.aufirst=Emiliano&rft.au=Ricciardi%2C+Emiliano&rft.title=Effects+of+healthy+aging+on+the+brain+functional+response+to+cholinergic+enhancement+during+a+visual+working+memory+task+in+humans&rft.genre=proceeding