"Given that chiropractic is founded on pseudoscientific notions of health and that the concept of spinal subluxations has never been empirically validated, just what are chiropractors looking for in X-rays? And since chiropractic treatment cannot demonstrate efficacy to a reasonable standard, how will X-raying a patient lead to a therapeutic benefit? In addition, since the positive effects seen for some sort of back pain are only comparable to conventional treatment where no X-ray is required, surely there is always an alternative treatment plan that does not involve exposing the patient to the risk of ionising radiation?" The Quackometer (29th January 2009)