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It is , therefore , of importance to perform evaluation of thyroid function in children using reference values appropriate for the chronological ages , because misdiagnosis of hypothyroidism or inappropriate secretion of TSH ( SITSH ) and oversight of mild subclinical hypothyroidism could occur if the diagnosis is made using reference values for adults .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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