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Start Over Subjects Medicine ✖Remove constraint Subjects: Medicine Subjects Pharmaceutical Preparations ✖Remove constraint Subjects: Pharmaceutical Preparations Languages English ✖Remove constraint Languages: English Dates by Range 1800-1849 ✖Remove constraint Dates by Range: 1800-1849 Publication Year 1820 to 1829 ✖Remove constraint Publication Year: <span class="from" data-blrl-begin="1820">1820</span> to <span class="to" data-blrl-end="1829">1829</span>