"Sympathectomy is a technique about which we have limited knowledge, applied to disorders about which we have little understanding." Associate Professor Robert Boas, Faculty of Pain Medicine of the Australasian College of Anaesthetists and the Royal College of Anaesthetists, The Journal of Pain, Vol 1, No 4 (Winter), 2000: pp 258-260
"Peripheral sympathectomy prevents the normal occurrence of variety of bodily changes and hence, a fortiori, prevents sensory feedback of those changes" (p.68) Biology and emotion By Neil NcNaughton Cambridge University Press 1989