61
Published 2005
National Academies Press

63
by Patlak, Margie
Published 2009
National Academies Press

65
by Solomon, Fredric
Published 1986
National Academy Press

66
Published 1986
National Academy Press

67
by Ekelman, Karen B.
Published 1988
National Academy Press

68
Published 1988
National Academy Press

69
Published 1988
National Academy Press

71
Published 2003
Institute of Medicine of the National Academies

72
Published 2003
National Academies Press

73
Published 1994
National Academies Press

74
Published 2006
National Academies Press

76
by Drexler, Madeline
Published 2010
The National Academies Press

77
Published 1989
National Academy Press

78
Published 1991
National Academy Press

79
by Rovner, Julie
Published 2009
National Academies Press

80
Published 2009
National Academies Press