Pruessner, J. C., F. Champagne, et al. (2004). Dopamine release in response to a psychological stress in humans and its relationship to early life maternal care: A positron emission tomography study using [11C]raclopride. J Neurosci 24 (11): 2825–31.

Pujol, J., A. Lopez, et al. (2002). Anatomical variability of the anterior cingulate gyrus and basic dimensions of human personality. Neuroimage 15 (4): 847–55.

Putnam, K., G. P. Chrousos, et al. (2005). Sex-related differences in stimulated hypothalamic-pituitary-adrenal axis during induced gonadal suppression. J Clin Endocrinol Metab 90 (7): 4224–31.

Qian, S. Z., Y. Cheng Xu, et al. (2000). Hormonal deficiency in elder y males. Int J Androl 23 (Suppl. 2): 1–3.

Rahman, Q. (2005). The neurodevelopment of human sexual orientation. Neurosci Biobehav Rev 29 (7): 1057–66.

Rahman, Q., S. Abrahams, et al. (2003). Sexual-orientation-related differences in verbal fluency. Neuropsychology 17 (2): 240–46.

Rahman, Q., V. Kumari, et al. (2003). Sexual orientation-related differences in prepulse inhibition of the human startle response. Behav Neurosci 117 (5): 1096–102.

Raingruber, B. J. (2001). Settling into and moving in a climate of care: Styles and patterns of interaction between nurse psychotherapists and clients. Perspect Psychiatr Care 37 (1): 15–27.

Rasgon, N. L., C. Magnusson, et al. (2005). Endogenous and exogenous hormone exposure and risk of cognitive impairment in Swedish twins: A preliminary study. Psychoneuroendocrinology 30 (6): 558–67.

Rasgon, N., S. Shelton, et al. (2005). Perimenopausal mental disorders: Epidemiology and phenomenology. CNS Spectr 10 (6): 471–78.