3Semerjian G. The role of the national institute of standards and technology in U. S [ J ]. Technology policy,Statement of Health, 1993, 2(51) :13.
4Byers PK, Lord EE. [J]. Am J Dis child, 1943; 66:471 - 494.
5Needleman HL, Gunnoe C, et al. Deficits in psychological and classroom performance of children with elevated lead levels[J]. N - Engl -J - Med. 1979; 300( 13):689 - 695.
6Bellinger D, Leviton A, et al. Longitudinal analyses of prenatal and postnatal lead exposure and early congitive development[J]. N - Engl - J - Med. 1987 Apt; 316(17) : 1037 - 1043.
7Brody DJ, Pirkle JL, et al. Blood lead levels in the US population Phase 1 of the third National health and nutrition examination survey( NHANES Ⅲ, 1988 to 1991 )[J]. JAMA,1994; 272(4):277-283.
8Landrigan, -P - J. The worldwide problem of lead in petrol[J]. Bull - World - Health - Organ. 2002; 80(10) :768.
9Shulda R, Dietrich KN, et al. Lead exposure and growth in the early preschool child: A follow - up report from the Cincinnati lead study [ J ]. Pediatrics,1991 ; 88(5) :886-893.
10Litvak PF, Graziano JH, et al. A prospective study of birth weight and length of Gestation in a population Surrounding a lead smelter in Kosovo, Yugoslavi[J]. Int J Epidemiol,1991 ; 20(3) :722 -728.
