1. Dresser R., JAVMA (J. Am. Vet. Med. Assoc.)194, 1184 (1989).
2. Based on the Carnegie Foundation Classification of Institutions of Higher Education.
3. Research protocols covered areas such as behavioral neuroscience psychopharmacology animal cognition and perception comparative psychology and ethology (for details see www.sciencemag.org/cgi/content/full/293/5530/608/DC1).
4. 9 Code of Federal Regulations Subpart C (§2.31 Animals and Animal Products 1 January 2000 ed.).
5. Guidelines for Ethical Conduct in the Care and Use of Animals (American Psychological Association Washington DC 1992).