21
Published 1997
National Academy Press

23
Published 2019
National Center for Biotechnology Information (US)

24
by Federhen, Scott
Published 2011
National Center for Biotechnology Information

25
Published 1999
National Center for Biotechnology Information

27
by Uhlir, P. F.
Published 2011
National Academies Press

28
by Balk, Ethan
Published 2012
Agency for Healthcare Research and Quality

31
by Olson, Steve, Downey, Autumn S.
Published 2013
The National Academies Press

32
by McCormack, Lauren
Published 2013
Agency for Healthcare Research and Quality, Department of Health and Human Services, USA

34
Published 2005
National Academies Press

36
by Hernandez, Lyla M.
Published 2009
National Academies Press

37
by Stead, William W.
Published 2009
National Academies Press

39
Published 2010
National Center for Biotechnology Information

40
Published 2011
National Center for Biotechnology Information