Environmental Surveillance System Characteristics and Impacts on Confidence About No Undetected Serotype 1 Wild Poliovirus Circulation
by Dominika A. Kalkowska, Radboud J. Duintjer Tebbens, and Kimberly M. Thompson, Risk Analysis 2019; 39(2):414-425, doi:10.1111/risa13193 (published on-line September 21, 2018).

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