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Interactive computer graphics in medical information retrieval and classification

The size of the body of medical literature is vast and growing at a rapid rate. The National Library of Medicine collection contains about two million items and at the present rate of growth will double in about 7 years.
 Attempts to improve the access to medical literature by professional practitioners, para-medical personnel, and life science researchers has principally included the MEDLARS service, a telephone/mail query service operating in batch mode; and interactive retrieval services operating on-line over long distance telephone lines such as AIM-TWX, developed by Systems Development Corporation.