21
by Chou, Roger
Published 2007
Oregon Health & Science University

22
by Whitlock, Evelyn P.
Published 2004
Agency for Healthcare Research and Quality (US)

23
Published 2006
Agency for Healthcare Research and Quality (US)

26
by Gartlehner, Gerald
Published 2008
Oregon Health & Science University

28
by Nelson, Heidi D.
Published 2009
Agency for Healthcare Research and Quality

29
by Chandler, Chris
Published 2005
Oregon Health & Science University, Evidence-Based Practice Center

30
by Helfand, Mark
Published 2006
Oregon Health & Science University, Evidence-Based Practice Center

31
by Jonas, Dan
Published 2008
Oregon Health & Science University

33
by Lin, Jennifer
Published 2011
Agency for Healthcare Research and Quality, U.S. Department for Health and Human Services

35
by Humphrey, Linda L.
Published 2002
Agency for Healthcare Research and Quality (US)

36
by Nelson, Heidi D., Nygren, Peggy, McInerney, Yasmin
Published 2004
Agency for Healthcare Research and Quality (US)

37
by Fleming, Craig, Whitlock, Evelyn P., Beil, Tracy, Lederle, Frank
Published 2005
Agency for Healthcare Research and Quality (US)

38
by Chou, Roger, Korthuis, P. Todd, Huffman, Laurie, Smits, Ariel K.
Published 2005
Agency for Healthcare Research and Quality (US)

39
by Chou, Roger, Smits, Ariel K., Huffman, Laurie, Korthuis, P. Todd
Published 2005
Agency for Healthcare Research and Quality (US)

40
by Nelson, Heidi D., Nygren, Peggy, Walker, Miranda, Panoscha, Rita
Published 2006
Agency for Healthcare Research and Quality (US)