From Wikipedia: In 2007, David Schechter (a medical doctor and former student and research assistant of Sarno) published a peer-reviewed[13] study of TMS treatment showing a 54% reduction in the average pain intensity scores for a cohort of 51 chronic back pain patients, whose average pain duration before the study was 9 years. In terms of statistical significance and success rate, the study outperformed similar studies of other psychological interventions for chronic back pain.