21
by Patlak, Margie
Published 2012
National Academies Press

22
Published 2013
Canadian Agency for Drugs and Technologies in Health

23
by Pate, Russell R.
Published 2012
National Academies Press

24
by Kolb, Helga
Published 1995
University of Utah Health Sciences Center

25
Published 2000
Landes Bioscience

26
Published 2004
U.S. Dept. of Health and Human Services, Public Health Service, Office of the Surgeon General

27
by Chung, Mei
Published 2009
Agency for Healthcare Research and Quality

29
by Hodge, William
Published 2005
Agency for Healthcare Research and Quality

30
Published 2007
The Institutes, 2007

31
by Hougan, Matthew
Published 2008
National Academies Press

32
by McKoy, J. Nikki
Published 2010
Agency for Healthcare Research and Quality

33
Published 2011
National Clinical Guideline Centre at the Royal College of Physicians

35
by Viswanathan, Meera
Published 2008
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services

37
Published 2013
Canadian Agency for Drugs and Technologies in Health

39
Published 2015
The National Academies Press