PT - JOURNAL ARTICLE ED - , TI - A Correction to the Perspective Titled: "PINing for Things Past" by Todd Charlton Sacktor AID - 10.1126/scisignal.3114er1 DP - 2010 Mar 23 TA - Science Signaling PG - er1--er1 VI - 3 IP - 114 4099 - http://stke.sciencemag.org/content/3/114/er1.short 4100 - http://stke.sciencemag.org/content/3/114/er1.full SO - Sci. Signal.2010 Mar 23; 3