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Subject Blood Remove constraint Subject: Blood

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    • 1900 – 1920

    Developed circa 1900 and often called the Tallquist Method, it is used to compare a patient's blood color to a chart of red colors to diagnose possible anemia. The method is still used when more sophisticated equipment…

    • 1752

    Bowls like this one were used to catch the blood released by bleeding. The appearance of blood was a useful diagnostic tool for physicians, who examined it for clues about the body's internal state. This large bowl was…