Group of diverse medical and health care systems, practices, and products that are not presently considered to be part of conventional medicine. It is therapy using complementary medicine together with conventional medicine (e.g., using aromatherapy to help lessen a patient’s discomfort after major surgery) or conventional medicine in place of alternative medicine (e.g., use of a special diet to treat cancer instead of major surgery or chemotherapy). Also see National Center for Complementary and Alternative Medicine (NCCAM).