title: Letter: Down syndrome and thyroid function.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004314:Down Syndrome / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D007037:Hypothyroidism / Q000209:etiology*; D013960:Thyroid Function Tests; D013961:Thyroid Gland / Q000503:physiopathology*