21
Published 2011
National Center for Biotechnology Information

24
Published 2014
International Monetary Fund

25
by Skerman, V. B. D.
Published 1989
American Society for Microbiology

26
by Pray, Leslie A.
Published 2007
National Academies Press

30
Published 2010
U.S. Dept. of Health and Human Services, Public Health Service, Office of Surgeon General

32
Published 2008
Royal College of Physicians

33
by Kvietys, Peter R.
Published 2010
Morgan & Claypool Life Sciences

35
Published 2008
World Health Organization

36
Published 2008
World Health Organization

37
by Trivedi, Ranak
Published 2009
Department of Veterans Affairs, Health Services Research & Development Service

38
by Pownall, Mary Elizabeth
Published 2010
Morgan & Claypool Life Sciences

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by Park, Byung-Yong
Published 2010
Morgan & Claypool

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by Nelms, Brian L.
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Morgan & Claypool Life Sciences