1. Clinical studies of homeopathy. The problem of a useful design;Haidvogl,1994
2. Clinical trials of homoeopathy;Kleijnen;Br Med J,1991
3. Randomised controlled trials of homeopathy in humans: characterising the research journal literature for systematic review;Mathie;Homeopathy,2013
4. Faculty of Homeopathy. Systematic reviews of RCTs in homeopathy. http://www.facultyofhomeopathy.org/research/systematic-reviews-of-rcts-in-homeopathy/ (Accessed, 24 July 2014).
5. Clinical research evidence in homeopathy;Mathie,2015