21
by Chou, Roger, Korthuis, P. Todd, Huffman, Laurie, Smits, Ariel K.
Published 2005
Agency for Healthcare Research and Quality (US)

22
by Chou, Roger, Smits, Ariel K., Huffman, Laurie, Korthuis, P. Todd
Published 2005
Agency for Healthcare Research and Quality (US)

27
by Chou, Roger, Helfand, Mark, Peterson, Kim, Dana, Tracy
Published 2006
Agency for Healthcare Research and Quality (US)

28
by Chou, Roger, Clark, Elizabeth, Helfand, Mark
Published 2004
Agency for Healthcare Research and Quality

30
by Chou, Roger
Published 2007
Oregon Health & Science University

32
by Chou, Roger
Published 2012
Agency for Healthcare Research and Quality

33
by Chou, Roger
Published 2006
U.S. Dept. of Health and Human Services, Agency for Healthcare Research and Quality

35
by Chou, Roger
Published 2011
Agency for Healthcare Research and Quality

37
by Chou, Roger, Peterson, Kim
Published 2005
Oregon Health & Science University

38
by Chou, Roger
Published 2017
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services

39
by Chou, Roger
Published 2015
Agency for Healthcare Research and Quality

40
by Chou, Roger
Published 2019
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services