2
Published 2007
Office of the Surgeon General, U.S. Public Health Service, U.S. Dept. of Health and Human Services

5
Published 2007
The Institutes, 2007

7
by Frank, Steven A.
Published 2002
Princeton University Press

8
by Brogden, Kim A.
Published 2002
ASM Press

9
by Choffnes, Eileen R.
Published 2009
National Academies Press

15
by Knobler, Stacey
Published 2005
National Academies Press

18
by Hernandez, Lyla M.
Published 2009
National Academies Press

20
by Relman, David A.
Published 2010
National Academies Press