21
by Davis, Miriam, Stroud, Clare
Published 2013
National Academies Press

23
Published 2014
National Academies Press

25
by Levin, Edward D.
Published 2006
CRC/Taylor & Francis

26
by Tan, Seng-Lai
Published 2006
Horizon Bioscience

27
by Hernandez, Lyla M.
Published 2008
National Academies Press

28
by Olson, Steve
Published 2009
National Academies Press

29
by McClellan, Mark B.
Published 2008
National Academies Press

31
Published 2008
Royal College of Physicians

32
Published 1999
National Academy Press

33
Published 1999
National Academy Press

34
by Rosof, Bernard M.
Published 2001
National Academy Press

36
by Wizemann, Theresa M.
Published 2011
National Academies Press

37
by Lehmann, Harold P.
Published 2001
U.S. Dept. of Health and Human Services, Public Health Service, Agency for Healthcare Research and Quality

38
Published 2012
British Psychological Society

39
Published 2011
National Academies Press

40
Published 2010
National Academies Press