Swiss healer Regula Metzener cites in her training several years of attending Psychology of Vision events. She also lists in her education: Bach flower therapy, Reiki, Quantum cure, tapping, space clearing, aura soma, Sanjeevini remedies and flower essences, NLP, Chinese Quantum method, and The Healing Code:
http://www.regulametzener.ch/index.php?id=13 [Update Apr. 1, 2019: Dead link]
https://web.archive.org/web/20181124212700/http://www.regulametzener.ch/index.php?id=13
https://www.regulametzener.ch/portrait-regula-metzener