21
Published 2000
National Academies Press

22
Published 1985
National Academy Press

23
Published 2012
National Academies Press

25
by Gelijns, Annetine
Published 1991
National Academy Press

28
Published 1988
National Academy Press

29
Published 1992
National Academy Press

31
Published 1990
National Academy Press

32
by Goodman, Clifford
Published 1990
Council on Health Care Technology, Institute of Medicine, National Academy Press

34
by Donaldson, Molla S.
Published 1992
National Academy Press

35
Published 1991
National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health

37
Published 1991
National Academies Press (US)

38
by Niessen, Louis W.
Published 2012
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services

39
Published 2012
National Academies Press

40
Published 2000
National Academy Press