1. Colquhoun, D. DC's Improbable Science Page
http://www.ucl.ac.uk/Pharmacology/dc-bits/quack.html
.
2. Barry, C. A. Soc. Sci. Med. 62, 2646–2657 (2006).
3. Editorial Lancet 336, 690 (2005).
4. Holmes, O. W. Homeopathy and its Kindred Delusions
http://www.quackwatch.org/01QuackeryRelatedTopics/holmes.html
(1842).
5. Goldacre, B. The Guardian 17 February (2007).