RT Journal Article SR Electronic T1 Report: U.S. life expectancy lagging because of smoking: Obesity also cited as contributing factor JF The Nation's Health JO Nations Health FD American Public Health Association SP 1 OP 12 VO 41 IS 2 A1 Tucker, Charlotte YR 2011 UL http://www.thenationshealth.org/content/41/2/1.2.abstract AB