41
by Ip, Stanley
Published 2003
U.S. Dept. of Health and Human Services, Pubic Health Service, Agency for Healthcare Research and Quality

42
by Raman, Gowri, Kupelnick, Bruce, Chew, Priscilla W., Lau, Joseph
Published 2006
Agency for Healthcare Research and Quality

44
by Lau, Joseph
Published 2004
Agency for Healthcare Research and Quality

45
by Lau, Joseph
Published 2005
Agency for Healthcare Research and Quality

46
by Lau, Joseph, Chew, Priscilla W., Wang, Chenchen, White, Alexander C.
Published 2004
Agency for Healthcare Research and Quality