M. S. Lee, M. H. Pittler, E. Ernst: Effects of reiki in clinical practice: a systematic review of randomised clinical trials. In: The International Journal of Clinical Practice. Band62, Nr.6, Juni 2008, S.947–954, doi:10.1111/j.1742-1241.2008.01729.x, PMID 18410352.
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M. S. Lee, M. H. Pittler, E. Ernst: Effects of reiki in clinical practice: a systematic review of randomised clinical trials. In: The International Journal of Clinical Practice. Band62, Nr.6, Juni 2008, S.947–954, doi:10.1111/j.1742-1241.2008.01729.x, PMID 18410352.
Sondra vanderVaart, Violette M. Gijsen, Saskia N. de Wildt, Gideon Koren: A systematic review of the therapeutic effects of Reiki. In: The Journal of Alternative and Complementary Medicine. Band15, Nr.11, November 2009, S.1157–1169, PMID 19922247.