The Institute for the Study and Treatment of Pain (iSTOP) is a non-profit organization dedicated to the understanding and treatment of soft tissue pain. Registered as a Canadian charity, operating income is subsidized by fundraising efforts and private donations. The doctors and physical therapists in the directory have years of experience using Intramuscular Stimulation to treat soft tissue pain. Many have been trained and certified directly by Professor C. Chan Gunn, or have trained through the University of British Columbia.