1. International journal of environmental research and public health. Basel : Molecular Diversity Preservation International, ©2004- ATP503 SW526 SW509 ECON336 SW421 SW470 ATP510 COUN380 PSY209 GEB102 SW290
2. Environmental health perspectives: EHP Research Triangle Park, N.C. : National Institute of Environmental Health Sciences, National Institutes of Health, Dept. of Health, Education and Welfare, 1972- ECON336
