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^Raso, Jack (1998). "Unnaturalistic Methods: S". The Expanded Dictionary of Metaphysical Healthcare, Alternative Medicine, Paranormal Healing, and Related Methods (Online ed.). Allentown, PA: Quackwatch. Retrieved 2013-11-09.
^Knastr, Mirka (1991). "Remembering Thomas Hanna". East West21 (4): 144.
^Price, Justin (2008). "Corrective exercise: Coming full circle: From medical gymnastics to self myofascial release and beyond, corrective exercise continues to help humans with physical dysfunction". IDEA Fitness Journal5 (1): 40.