1. Selye, H. Syndrome produced by diverse nocuous agents. Nature 138, 32 (1936).
2. Levine, S. & Ursin, H. in Stress Neurobiology and Neuroendocrinology (eds Brown, M. R. & Koob, G. F.) 3–21 (Rivier Marcel Dekker, Inc., New York, 1991).
3. Chrousos, G. P. & Gold, P. W. The concepts of stress and stress system disorders. Overview of physical and behavioral homeostasis. JAMA 267, 1244–1252 (1992).
4. De Kloet, E. R., Vreugdenhil, E., Oitzl, M. S. & Joëls, M. Brain corticosteroid receptor balance in health and disease. Endocr. Rev. 19, 269–301 (1998).
5. McEwen, B. in Encyclopedia of Stress Vol. 3 (ed. Fink, G.) 508–509 (Academic, San Diego, USA, 2000).