TY - JOUR A1 - Dobson, J.E. A1 - Bright, E.A. A1 - Coleman, P.R. A1 - Durfee, R.C. A1 - Worley, B.A. T1 - LandScan: A global population database for estimating populations at risk Y1 - 2000 VL - 66 IS - 7 ER -