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JAMA. 1914;LXIII(9):766-769. doi:10.1001/jama.1914.02570090052015.
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INTRODUCTION  The subject of paranoia forms one of the most important chapters in the history and evolution of psychiatry. Esquirol, Laséque, Hoffman, Snell, Westphal, Mendel, Kraepelin and a score of others helped to lay the foundation of the paranoia concept. Esquirol attempted to bring a group of cases of paranoiac conditions under the heading monomania; in 1852 Laséque described a disease picture under the name of delire de persecution which was later named after him by his countrymen as delire de Laséque. In 1862 and 1865 Hoffman and Snell independently of each other gave careful attention to this subject. It was not until 1878, however, that Westphal made paranoia felt and recognized in Germany; he termed it Verückheit and Mendel invented the term "paranoia."Since then the subject of paranoia has undergone many stages of transformation and variation. At one time the whole subject was in a state of confusion


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