1. Relationship of Perception of Radon as a Health Risk and Willingness to Engage in Radon Testing and Mitigation
2. Environmental health of children
3. Economic Research Service United States Department of Agriculture. (2003 ). 2003 rural-urban continuum codes. Retrieved May 23, 2006, fromhttp://www.ers.usda.gov/Briefing/Rurality/RuralUrbCon
4. Environmental Protection Agency. (2004 ). EPA map of radon zones. Retrieved August 19, 2004, fromhttp://www.epa.gov/radon/zonemap.html
5. Environmental Protection Agency. (2006 ). Indoor air-radon. Retrieved May 16, 2006, fromhttp://www.epa.gov/radon/radonqa1.html