| Authors: |
Mortensen ME; Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States. Electronic address: MMortensen@cdc.gov., Birch R; Westat, Inc., Rockville, MD, United States., Wong LY; Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States., Valentin-Blasini L; Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States., Boyle EB; Westat, Inc., Rockville, MD, United States., Caldwell KL; Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States., Merrill LS; Westat, Inc., Rockville, MD, United States., Moye J Jr; NCS Program Office, Eunice Kennedy Shriver National Institute for Child Health and Human Development, National Institutes for Health, Bethesda, MD, United States., Blount BC; Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States. |