PT - JOURNAL ARTICLE AU - Hanson, Brooks TI - A Saltatory Itinerary AID - 10.1126/science.298.5602.2285d DP - 2002 Dec 20 TA - Science PG - 2285--2287 VI - 298 IP - 5602 4099 - http://science.sciencemag.org/content/298/5602/2285.4.short 4100 - http://science.sciencemag.org/content/298/5602/2285.4.full SO - Science2002 Dec 20; 298