↑Lee, MS; Pittler, MH; Ernst, EInternational Journal of Clinical Practice, 62, 6, 2008, pàg. 947–54. DOI: 10.1111/j.1742-1241.2008.01729.x. PMID: 18410352 [Consulta: free]. «Most trials suffered from methodological flaws such as small sample size, inadequate study design and poor reporting....In conclusion, the evidence is insufficient to suggest that reiki is an effective treatment for any condition. Therefore the value of reiki remains unproven.»