1
by Balk, Ethan
Published 2018
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services

3
by Balk, Ethan, Lau, Joseph
Published 2002
Agency for Healthcare Research and Quality

4
by Balk, Ethan
Published 2006
Agency for Healthcare Research and Quality

5
by Balk, Ethan
Published 2012
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services

6
by Balk, Ethan
Published 2011
Agency for Healthcare Research and Quality

7
by Balk, Ethan, Earley, Amy, Hadar, Nira, Shah, Nirav
Published 2014
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services

9
by Balk, Ethan
Published 2005
Agency for Healthcare Research and Quality

10
by Balk, Ethan
Published 2006
U.S. Dept. of Health and Human Services, Agency for Healthcare Research and Quality

16
by Balk, Ethan
Published 2016
Agency for Healthcare Research and Quality, U.S. Department of Health and Human Services

19
by Balk, Ethan
Published 2004
U.S. Dept. of Health and Human Services, Public Health Service, Agency for Healthcare Research and Quality