References
- et al. Lead Research: Current Medical Developments Industrial Hygiene Foundation Inc Pittsburgh 1967 bulletin 40
- Chilton , NW and Fertig , JW . 1953 . The estimation of sample size in experiments: I. Using comparisons of averages . J Dent Res , 32 : 530 – 540 .
- 1972 . Lead: Airborne lead in perspective , Committee on Biologic Effects of Atmospheric Pollutants, Division of Medical Sciences, National Research Council, National Academy of Sciences .
- Snedecor , GW and Cochran , WG . 1967 . Statistical Methods , 6 , 272 Ames , Iowa : Iowa State University Press .
- McLaughlin , M and Stopps , GJ . 1973 . Smoking and lead . Arch Environ Health , 26 : 131 – 136 .
- Lewis , KH . 1966 . The Diet as a Source of Lead Pollution: Symposium on Environmental Lead Contamination , 17 – 20 . Public Health Service . No, 1440
- Azar , A , Snee , RD and Habibi , K . Relationship of Community Levels of Air Lead and Indices of Lead Absorption: Proceedings of the International Symposium on Environmental Health Aspect of Lead . Oct 2–6 1972 , Amsterdam , The Netherlands. Luxembourg : Centre for Information and Documentation .
- Smith , JF . 1972 . Annual Review 1971 U.S. Lead Industry , New York : Lead Industries Assoc Inc .
- Tepper , LB and Levin , LS . 1972 . A Survey of Air and Population Lead Levels in Selected American Communities: Final Report , Cincinnati : Department of Environmental Health, University of Cincinnati .
- et al. Interlaboratory evaluation of the reliability of blood lead analyses Am Ind Hyg Assoc J 1970 31 412 429
- 1967 . Cigarette Smoking and Health Characteristics, United States: July 1964-June 1965 , Series 10 Vol. 34 , 2 National Center for Health Statistics .
- 1970 . Current Estimates from the Health Interview Survey, United States: 1968 , series 10 Vol. 60 , 29 National Center for Health Statistics .
- 1972 . Cigarette Smoking: United States, 1970: Monthly Vital Statistics Report, Health Interview Survey , Provisional Data National Center for Health Statistics . suppl 21
- et al. Incidence of high blood lead levels in Chicago children Pediatrics 1969 44 661 667