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Start Over You searched for: Subjects Libraries, Medical Remove constraint Subjects: Libraries, Medical Publication Year 1990 to 1999 Remove constraint Publication Year: <span class="from" data-blrl-begin="1990">1990</span> to <span class="to" data-blrl-end="1999">1999</span>

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8. National Library of Medicine classification: a scheme for the shelf arrangement of library materials in the field of medicine and its related sciences

10. National Library of Medicine classification: a scheme for the shelf arrangement of library materials in the field of medicine and its related sciences