"The Alpha Omega Alpha Medical Honor Society, called Alpha Omega Alpha (\u0391\u03A9\u0391 or AOA), is a national honor society for medical students, residents, scientists, and physicians in the United States and Canada. Membership into AOA is one of the highest honors a student is eligible for during his or her four years of medical school, as only a small fraction of a class is even eligible for this distinction."@en .