1. Freud, A. (1937). The Ego and the Mechanisms of Defence. Hogarth Press and Institute of Psychoanalysis: London.
2. Dansak, D.A., Cordes, R.S. (1978). Cancer: denial or suppression? International Journal of Psychiatry in Medicine, 9, 257–262.
3. Watson, M., Greer, S., Blake, S., Shrapnell, K. (1984). Reaction to a diagnosis of breast cancer: relationship between denial, delay, and rates of psychological morbidity. Cancer, 53, 2008–2012.
4. Levine, J., Zigler, E. (1975). Denial and self-image in stroke, lung cancer, and heart disease patients. Journal of Consulting and Clinical Psychology, 43, 751–757.
5. Aitken-Swan, J., Paterson, R. (1955). The cancer patient: delay in seeking advice. British Medical Journal, i, 623–627.