1. Halls SB. 2008. Body surface area calculator for medication doses. Available at: http://www.halls.md/body-surface-area/bsa.htm. Accessed August 20, 2008.
2. Is the fetus susceptible to adverse effects of a chemical or physical agent after the first trimester? Teratology primer;Rodier;The Teratology Society,2005
3. Chemically Induced Birth Defects