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Sampling design, response rates, and analysis weights for the National Human Exposure Assessment Survey (NHEXAS) in EPA Region 5
Whitmore, R., Byron, M., Clayton, C., Thomas, K., Zelon, H., Pellizzari, E., Lioy, PJ., & Quackenboss, JJ. (1999). Sampling design, response rates, and analysis weights for the National Human Exposure Assessment Survey (NHEXAS) in EPA Region 5. Journal of Exposure Analysis and Environmental Epidemiology, 9(5), 369-380.