Medical journals are publications that report medical information to physicians and other health professionals. With the development of electronic publishing, many medical journals now have Web sites on the Internet, and some journals publish only online. A few medical journals, like JAMA, the Journal of the American Medical Association, are considered general medical journals because they cover many fields of medicine. Most medical journals are specialty journals that focus on a particular area of medicine. The April 19, 2006, issue of JAMA includes an article about use of medical journal articles by doctors. This Patient Page is based on one previously published in the June 5, 2002, issue of JAMA.