PT - JOURNAL ARTICLE ED - , TI - Stacking Up the Evidence AID - 10.1126/science.299.5612.1513a DP - 2003 Mar 07 TA - Science PG - 1513--1513 VI - 299 IP - 5612 4099 - http://science.sciencemag.org/content/299/5612/1513.1.short 4100 - http://science.sciencemag.org/content/299/5612/1513.1.full SO - Science2003 Mar 07; 299