http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Birth defects surveillance atlas of selected congenital anomalies
Centers for Disease Control and Prevention
International Clearinghouse for Birth Defects Surveillance and Research
Centers for Disease Control and Prevention (U.S.)
International Clearinghouse for Birth Defects Monitoring Systems