1. (eds). To Err Is Human: Building a Safer Health System. Committee on Quality of Health Care in America, Institute of Medicine. National Academy Press: Washington DC, 1999. Executive summary available at: http://www.iom.edu/iom/iomhome.nsf/WFiles/ToErr-8pager/$file/ToErr-8pager.pdf [Last accessed on 4 March 2002].
2. Birth defect surveillance at the state and local level
3. Evaluation of selected characteristics of pregnancy drug registries
4. Six-digit codes for reportable birth defects based on the British Pediatric Association (BPA) Classification of Diseases (1979) and the World Health Organization's International Classification of Diseases, 9th Revision, Clinical Modification (ICD-9-CM) (1979). Code modifications developed by Birth Defects & Genetic Diseases Branch, National Center for Environmental Health, Centers for Disease Control and Prevention, Public Health Service, US Department of Health and Human Services, Atlanta, Georgia, USA.
5. Information can be found on the website at: http://www.meddramsso.com/ [Last accessed 4 March 2002].