Originated in 1988, Cancer Treatment Centers of America (CTCA) is a privately held network of cancer treatment hospitals. It provides a comprehensive and fully integrated approach to cancer treatment. Based in Schaumburg, Ill., the firm serves patients with advanced stage of cancer in the United States. It offers exclusive technologies and treatment protocols, such as the TomoTherapy radiation treatment and metronomic chemotherapy to minimize the side effects of chemotherapy. The firm s individualized cancer treatment plan includes surgery, radiation, chemotherapy and supportive cancer therapies.