Chit Chan Gunn, CM OBC is the founder and president of The Institute for the Study and Treatment of Pain (iSTOP) in Vancouver, British Columbia, Canada, a not-for-profit information centre for Gunn Intramuscular Stimulation (IMS). Dr. Gunn developed a process called Intramuscular Stimulation (IMS) to treat neuropathic pain. In 2001 Dr Gunn was inducted into the Order of British Columbia and in 2002 into the Order of Canada for his contributions in the field of pain study. He is a clinical professor at the University of Washington.