Approximately 300 Australian users and non-users of the biomedical computerized data base, MEDLARS, were surveyed by mailed questionnaire in an attempt to determine the needs of present and potential users of the system and their prior experiences with computerized as well as other information services. Results of the survey reveal: (1) an extensive under-use of medical information systems due to a lack of awareness of their availability, (2) inadequate local library services, and (3) an inadequate interlibrary loan network. Recommendations include improvement of the interlibrary loan network, selection and adoption of a minimum core of titles as a hospital library standard, development of short term training programs for hospital librarians, and the appointment of field officers to function as disseminators of information on information services. Appended are the position paper from which the study was generated, a brief history of the development of medical information services, and the survey instrument used. (STS) are the position medical information services, and the survey instruments used. (STS) Appended are the position medical information services, and the survey instruments used. (SJS)