1
by Mark, David, Samson, David J., Bonnell, Claudia J., Ziegler, Kathleen M.
Published 2011
Agency for Healthcare Research and Quality

2
by Samson, David J.
Published 2007
U.S. Dept. of Health and Human Services, Public Health Service, Agency for Healthcare Research and Quality

3
by Mark, David, Samson, David J., Bonnell, Claudia J., Ziegler, Kathleen M.
Published 2011
Agency for Healthcare Research and Quality

4
by Samson, David J.
Published 2004
Agency for Healthcare Research and Quality

9
by Samson, David J.
Published 2010
Agency for Healthcare Research and Quality

10
by Samson, David J.
Published 2010
Agency for Healthcare Research and Quality