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The conjunction of hypothyroidism and mental illness has been of great interest to psychiatrists for almost a century. Sir William Gull (1873) noted mental changes in his original description of hypothyroidism, as did Ord (1878) when he coined the term myxoedema. Savage (1880) reported the first patient with myxoedema to be found in a mental hospital population.
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C. M. Tonks (1964) studied this question.
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