Canada Home>Conditions_and_Diseases>Communication_Disorders>Language_and_Speech>Stuttering>Therapies_and_Treatments>Canada     Web Pages Institute for Stuttering Treatment and Research (ISTAR) Nonprofit society providing stuttering therapy in Edmonton, Alberta. Natural Speech Institute Learn to sing your words, in Calgary, Alberta. Speech Foundation of Ontario - Stuttering Centre Nonprofit speech clinic, located in Toronto, Ontario and directed by Dr. Robert Kroll. Group workshops and private therapy are offered.