TY - JOUR A1 - Sheehan, J.T. A1 - Gershman, S.T. A1 - MacDougall, L.A. A1 - Danley, R.A. A1 - Mroszczyk, M. A1 - Sorensen, A.M. A1 - Kulldorff, M. T1 - Geographic assessment of breast cancer screening by towns, zip codes, and census tracts Y1 - 2000 DO - 10.1097/00124784-200006060-00008 VL - 6 IS - 6 ER -