Pierre Louis, French physician

Pierre Louis, French physician

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Credit: SCIENCE PHOTO LIBRARY

Caption: Pierre Louis. Portrait of the French physician Pierre Charles Alexandre Louis (1787-1872). Louis carried out most of his work at the Charite and the Hotel-Dieu, large hospitals in Paris, France. He used statistics (what he termed the "numerical method") to check how effective various medical techniques were. In 1828, he showed that bloodletting using leeches was generally of little use in treating disease. Louis also used statistics in his works on tuberculosis (1825) and typhoid (1829). The methods he used were important in establishing the statistical techniques used in modern trials of drugs and new medical techniques.

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Keywords: bleeding, bloodletting, louis, medical, medical trial, opposer, physician, pierre, pierre charles alexandr, pioneer, portraits, researcher, statistics, surname l, tuberculosis, typhoid

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