RT Journal Article SR Electronic T1 Leading Health Indicators guide work to improve nation’s health: Healthy People 2020 steers US progress JF The Nation's Health JO Nations Health FD American Public Health Association SP 1 OP 14 VO 44 IS 2 A1 Natalie McGill YR 2014 UL http://www.thenationshealth.org/content/44/2/1.1.abstract AB