| Affiliation: | 1. Wisconsin Geological and Natural History Survey, Madison, WI 53705.;2. Geology & Geophysics Department, University of Minnesota, Minneapolis, MN 55455.;3. Door County Public Health Department, Sturgeon Bay, WI 54235.;4. Bureau of Communicable Diseases, Wisconsin Division of Public Health, Madison, WI 53701.;5. Wisconsin Department of Natural Resources, Sturgeon Bay, WI 54235.;6. Door County Soil & Water Conservation Department, Sturgeon Bay, WI 54235.;7. Green Land & Water LLC, Rochester, MN 55904.;8. Marshfield Clinic Research Foundation, Marshfield, WI 54449. |
