American | American Civil War | American Broadcasting Company | American football | African American | American Idol | American Revolutionary War | Academy Awards | American Revolution | United States Military Academy | Russian Academy of Sciences | Harvard Medical School | American Association for the Advancement of Science | American Red Cross | American Library Association | American Museum of Natural History | American Express | National Academy of Sciences | American Academy of Arts and Sciences | American League | American Association | American Heart Association | American comic book | Academy Award for Best Foreign Language Film | American Institute of Architects | American Airlines | American Hockey League | United States Naval Academy | Spanish-American War | Pan American Games |
He remains licensed to practice medicine in Illinois, Virginia, and Washington, D.C. He is a member of several medical societies such as the American Medical Association, the American Society of Internal Medicine and the American Academy of Medical Directors.