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Start Over Formats Text ✖Remove constraint Formats: Text Authors National Library of Medicine (U.S.) ✖Remove constraint Authors: National Library of Medicine (U.S.) Genre Bibliography ✖Remove constraint Genre: Bibliography Publication Year 1300 to 1399 ✖Remove constraint Publication Year: <span class="from" data-blrl-begin="1300">1300</span> to <span class="to" data-blrl-end="1399">1399</span>

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