RT Journal Article SR Electronic T1 Work targets lagging U.S. infant mortality rate: Nation’s rate has improved, but trails many similar countries JF The Nation's Health JO Nations Health FD American Public Health Association SP 1 OP 12 VO 43 IS 8 A1 Charlotte Tucker YR 2013 UL http://www.thenationshealth.org/content/43/8/1.1.abstract AB