1. U.S. Department of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry, Toxicological profile for mercury, Georgia, USA, March 1999, Publication CAS# 7439-97-6. 〈http://www.atsdr.cdc.gov/toxprofiles/tp.asp?id=115&tid=24〉 and US FDA 〈http://www.fda.gov/ohrms/dockets/ac/06/briefing/2006-4218b1-19-white-paper-draft-Appendix-G1-08.pdf〉.
2. Thiomersal or merthiolate. 〈http://en.wikipedia.org/wiki/Thiomersal〉.
3. C.H. Ngim, An epidemiological study of neurobehavioural consequences of dentists exposed to elemental mercury vapour (Ph.D. thesis), National University of Singapore, 1989.
4. Chronic neurobehavioural effects of elemental mercury in dentists;Ngim;Br. J. Ind. Med.,1992
5. Accidental inhalation of mercury vapour: respiratory and toxicologic consequences;Lien;Can. Med. Assoc. J.,1983