“At my first appointment with Dr. Matsen, I could not have predicted his impact on my life. He has far exceeded my expectations of what the terms “doctor” and “physician” mean. Thirty years later, I credit him as the central agent who gave me the vitality to teach at all levels including university and arrive at ‘Old Age’ Canada pensionhood in excellent health without the use of prescription drugs! As a technology-science educator, I have marvelled at Dr. Jonn’s ability to solve huge medical mysteries including how to correct widespread problems such as toxicity caused by drugs, some dental amalgams, and some vaccinations. This doctor thinks deeply and seriously about patient cases and continually asks himself new questions that centre on why, how, and what if? Matsen integrates his study of medical literature with his immense clinical experience to obtain optimum health for his patients.” - Chris B.