1. Cannon RO, Benjamin SB. Chest pain as a consequence of abnormal visceral nociception. Dig Dis Sci 1993;38:193–6.
2. Melzack R. The puzzle of pain. Harmondsworth: Penguin; 1973.
3. Procacci P, Maresca M. Clinical aspects of heart pain. Advances in Pain Research and Therapy 1987;10:127–33.
4. Cervero F, Vecchiet L, Albe-Fessard D, Lindblom U, Giamberadino MA, editors.New trends in referred pain and hyperalgesia. Elsevier Science Publishers B.V. 1993; 4, Pathophysiology of referred pain and hyperalgesia from viscera. p. 35–46.
5. Malliani A, Lombardi F. Consideration of the fundamental mechanisms eliciting cardiac pain. Am Heart.1 1982;103:575–8.