RT Journal Article SR Electronic T1 Report calls for examination of chemical safety: National coalition notes difficulty determining exposures JF The Nation's Health JO Nations Health FD American Public Health Association SP 9 OP 9 VO 41 IS 6 A1 Johnson, Teddi Dineley YR 2011 UL http://www.thenationshealth.org/content/41/6/9.2.abstract AB