Thomas Levy, MD is a board-certified cardiologist. After practicing adult cardiology for 15 years, he began to research the enormous toxicity associated with much dental work, as well as the pronounced ability of properly-administered vitamin C to neutralize this toxicity. He has now written eleven books, with several addressing the wide-ranging properties of vitamin C in neutralizing all toxins and resolving most infections, as well as its vital role in the effective treatment of heart disease and cancer. Others address the important roles of dental toxicity and nutrition in disease and health.