1. Agency for Toxic Substances and Disease Registry (ATSDR), Toxicological Profile for Formaldehyde (Draft), Public Health Service, US Department of Health and Human Services, Atlanta, GA, 1997.
2. Formaldehyde, Environmental Health Criteria, World Health Organization, Geneva, 1989.
3. US Environmental Protection Agency (EPA), Integrated Risk Information System (IRIS) on Formaldehyde, National Center for Environmental Assessment, Office of Research and Development, Washington, DC, 1999.
4. IARC, Monographs Programme on the Evaluation of Carcinogenic Risks to Humans, vol. 62, IARC, Lyon, 1995, p. 217.