Liebsch, G., Linthorst, A. C. E., Neumann, I. D., Reul, J. M. H. M., Holsboer, F., & Landgraf, R. (1998). Behavioral, physiological, and neuroendocrine stress responses and differential sensitivity to diazepam in two Wistar rat lines selectively bred for high- and low-anxiety-related behavior. Neuropsychopharmacology, 19, 381-396.