Stokes William S, Hill Richard N
NTP Interagency Center for the Evaluation of Alternative Toxicological Methods, Environmental Toxicology Program, National Institute of Environmental Health Sciences, Mail Code EC-17, PO Box 1233, Research Triangle Park, NC 27709, USA.
Lab Anim (NY). 2002 Jul-Aug;31(7):26-32. doi: 10.1038/5000172.