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Gustafson, L., Ellis, S., & Hammell, K. L. (2003). Epidemiologic study of infectious salmon anemia in Maine: combining the subjective with the objective in risk factor estimation. In O. C. ,R. C. Miller (Eds.), Technical bulletin ;; no. 1902; Variation: Technical bulletin (United States. Dept. of Agriculture) ;; no. 1902. (pp. 51-53). Washington, DC; U.S. Dept. of the Interior, U.S. Geological Survey: U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service; U.S. Dept. of Commerce, National Marine Fisheries Service.