1. Code of Laws—Title 44—Chapter 44—Birth Defects. (2004).https://www.scstatehouse.gov/code/t44c044.php.
2. Metropolitan Atlanta Congenital Defects Program 40th Anniversary Edition Surveillance Report: Reporting birth defects surveillance data 1968–2003;Correa A.;Birth Defects Research Part A: Clinical and Molecular Teratology,2008
3. Updated guidelines for evaluating public health surveillance systems: Recommendations from the Guidelines Working Group;German R. R.;MMWR. Recommendations and Reports: Morbidity and Mortality Weekly Report,2001
4. The effects of opt‐out legislation on data collection and surveillance of birth defects by the New Hampshire Birth Conditions Program, New Hampshire, United States, 2007‐2009;Gill S.;Journal of Registry Management,2012