[1] Texas Dept State Hlth Serv, Austin, TX 78714 USA
[2] Ctr Dis Control & Prevent, Natl Ctr Birth Defects & Dev Disabil, Atlanta, GA USA
[3] New York State Dept Hlth, Albany, NY 12237 USA
[4] Massachusetts Dept Publ Hlth, Boston, MA USA
[5] Florida Dept Hlth, Tallahassee, FL USA
[6] Illinois Dept Publ Hlth, Springfield, IL 62761 USA
[7] Nebraska Dept Hlth & Human Serv, Lincoln, NE USA
[8] Michigan Dept Community Hlth, Michigan Birth Defects Registry, Lansing, MI USA
[9] Arizona Dept Hlth Serv, Phoenix, AZ 85007 USA
[10] North Carolina Birth Defects Monitoring Program, Raleigh, NC USA
[11] Colorado Dept Publ Hlth & Environm, Denver, CO USA
[12] New Jersey Dept Hlth, Trenton, NJ USA
[13] Univ S Florida, Dept Community & Family Hlth, Tampa, FL USA