1
by Heindel, Ned D.
Published 2005
National Academies Press

2
Published 2009
National Center for Biotechnology Information

3
Published 1991
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health

4
by Liverman, Catharyn T.
Published 1997
National Academy Press

5
by Totten, Annette M.
Published 2011
Department of Veterans Affairs

6
Published 2005
National Center for Biotechnology Information

7
Published 2005
National Center for Biotechnology Information

8
Published 2005
Agency for Healthcare Research and Quality

9
Published 2003
National Academies Press

10
by Stead, William W.
Published 2009
National Academies Press

11
Published 2011
National Center for Biotechnology Information

12
Published 2010
National Center for Biotechnology Information

13
Published 2005
National Center for Biotechnology Information

14
Published 2012
National Center for Biotechnology Information

15
Published 2009
National Academies Press

16
Published 2011
National Center for Biotechnology Information

17
Published 2013
National Center for Biotechnology Information (US)

18
Published 2003
National Academies Press

19
Published 2011
National Academies Press

20
by Gruber, Arthur
Published 2008
NCBI