%T Coupling between regional cerebral glucose metabolism and blood flow at rest in young and older healthy subjects %D 1999 %C Dusseldorf, Germany %A Emiliano Ricciardi %A Gene E. Alexander %A Maura L. Furey %A G. Giovacchini %A Barry Horwitz %A Alessio Dani %A Mario Guazzelli %A Stanley I. Rapoport %A Mark B. Schapiro %A Pietro Pietrini %L eprints3434