TY - JOUR A1 - Raghunathan, T.E. A1 - Xie, D. A1 - Schenker, N. A1 - Parsons, V.L. A1 - Davis, W.W. A1 - Dodd, K.W. A1 - Feuer, E.J. T1 - Combining information from two surveys to estimate county-level prevalence rates of cancer risk factors and screening Y1 - 2007 DO - 10.1198/016214506000001293 VL - 102 IS - 478 ER -