共 50 条
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- [5] SEARCHING MEDICAL LITERATURE - INFORMATION RETRIEVAL (MEDLARS) AT NATIONAL LIBRARY OF MEDICINE JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1964, 188 (03): : 251 - &
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- [9] INTERNATIONAL PROGRAMS OF THE NATIONAL-LIBRARY-OF-MEDICINE BULLETIN OF THE MEDICAL LIBRARY ASSOCIATION, 1988, 76 (01): : 54 - 57