Reflexology, also known as zone therapy, is an alternative medical practice involving the application of pressure to specific points on the feet, ears, and hands. This is done using thumb, finger, and hand massage techniques without the use of oil or lotion. It is based on a pseudoscientific system of zones and reflex areas that purportedly reflect an image of the body on the feet and hands, with the premise that such work on the feet and hands causes a physical change to the supposedly related areas of the body. There is no convincing scientific evidence that reflexology is effective for any medical condition. In a Cochrane Collaboration review, reflexology is defined as follows: "Reflexology is gentle manipulation or pressing on certain parts of the foot to produce an effect elsewhere in the body." The Australian Government's Department of Health define reflexology as "a system of applying pressure, usually to the feet, which practitioners believe stimulates energy and releases 'blockages' in specific areas that cause pain or illness." Practices resembling reflexology may have existed in previous historical periods. Similar practices have been documented in the histories of India, China and Egypt. Reflexology was introduced to the United States in 1913 by William H. Fitzgerald, M.D. (1872–1942), an ear, nose, and throat specialist, and Edwin F. Bowers. Fitzgerald claimed that applying pressure had an anesthetic effect on other areas of the body. It was modified in the 1930s and 1940s by Eunice D. Ingham (1889–1974), a nurse and physiotherapist. Ingham claimed that the feet and hands were especially sensitive and mapped the entire body into "reflexes" on the feet, renaming "zone therapy" as reflexology. Many of the modern reflexologists use Ingham's methods, or similar techniques of reflexologist Laura Norman. In 2015, the Australian Government's Department of Health published the results of a review of alternative therapies that sought to determine if any were suitable for being covered by health insurance.