1
by Risher, J., Odin, Marc, Osier, Mark
Published 2004
U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry

2
by Risher, J., McDonald, A. Rosa, Citra, Mario J., Bosch, S.
Published 2003
U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry