Bashams, A.I. 1993. Basic mechanisms of pain and pain control. Proceedings (Refresher Course Syllabus) of the 7th World Congress on Pain. Paris, France, August, pp. 1–11. www.painbooks.org/proc7.html. Purchase book and view table of contents.
Cassano, G. 1983. What is pathological anxiety and what is not. In: The Benzodiazepines: From Molecular Biology to Clinical Practice, pp. 287–293, ed. E. Costa. New York, NY: Raven Press.
Cassell, E. 1989. What is suffering? In: Science and Animals: Addressing Contemporary Issues, pp.13–16, ed. H.N. Guttman, J.A. Mench, and R.C. Simmonds. Bethesda, MD: Scientists Center for Animal Welfare.
Ewbank, R. 1973. Use and abuse of the term "stress" in husbandry and welfare. Veterinary Record 92:709–710.
Fraser, D., Ritchie, J.D., and Fraser, A.F. 1975. "Stress" in a veterinary context. British Veterinary Journal 131:653–662.
Friend, T. 1980. Stress: what is it and how can it be quantified? International Journal of the Study Animal Problems 1:366–374.
Grandin, T. and Deesing, M. (2002) Distress in animals: is it fear, pain or physical stress? American Board of Veterinary Practitioners 2002 www.grandin.com/welfare/fear.pain.stress.html
International Association for the Study of Pain (IASP), Subcommittee of Taxonomy. Pain 6:249.
Kitchell, R.L. 1987. Problems in defining pain and peripheral mechanisms of pain. JAVMA 191: 1195–1199.
Mersky, H. 1979. Pain terms: a list with definitions and notes on usage. Pain 6:249–250.
Merskey, H. 1986. Classification of chronic pain. Pain, S1-226. See: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=3461421
Moberg, G.P. 1987. Problems in defining stress and distress in animals. JAVMA 191(10):1207–1211.
National Research Council. 2000. Definition of pain and distress and reporting requirements for laboratory animals. Proceedings of ILAR workshop held on June 22, 2000, Washington, DC. www.nap.edu/books/0309072913/html/
Rowan, A.N. 1988. Animal anxiety and animal suffering. Applied Animal Behavior Science 20(1):135–142.
Stott, G.H. 1981. What is animal stress and how is it measured? Journal of Animal Science 52(1):150–153.
