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Thyroid dysfunction in Down’s syndrome: relation to age and thyroid autoimmunity
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Editor,—The paper by Karlssonet al describes a longitudinal study of monitoring for thyroid disease in children and young people with Down’s syndrome.1 Although the authors conclude that “annual screening is important”, they do not provide any data to justify the interval being a year. We need to know the interval from changes in thyroid stimulating hormone concentrations …