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2
by Brown, Elizabeth Stallman, Yeung, Laurence Yip-Lun, Sawyer, Keegan
Published 2014
National Academies Press
“... in December 2013 and January 2014 by the National Research Council Roundtable on Public Interfaces of the Life...”
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3
by Hernandez, Lyla M.
Published 2009
National Academies Press
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4
Published 2021
US Department of Health and Human Services, Office of the Surgeon General
“.... The World Health Organization and the United Nations have characterized this unprecedented spread...”