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Start Over You searched for: Subjects Monitoring, Physiologic -- methods Remove constraint Subjects: Monitoring, Physiologic -- methods Publication Year 1800 to 1899 Remove constraint Publication Year: <span class="from" data-blrl-begin="1800">1800</span> to <span class="to" data-blrl-end="1899">1899</span>

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1. A new form of piston recorder and some of the changes of the volume of the finger which it records