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In: Braverman LE, Cooper DS, Kopp PA (eds) Werner & Ingbar\u2019s The Thyroid: A Fundamental and Clinical Text (11th). Wolters Kluwer, Philadelphia, USA: 267\u2013299."},{"key":"2","doi-asserted-by":"crossref","unstructured":"2 Favresse J, Burlacu MC, Maiter D, Gruson D (2018) Interferences with thyroid function immunoassays: clinical implications and detection algorithm. Endocr Rev 39: 830\u2013850.","DOI":"10.1210\/er.2018-00119"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3 Biondi B, Cooper DS (2008) The clinical significance of subclinical thyroid dysfunction. Endocr Rev 29: 76\u2013131.","DOI":"10.1210\/er.2006-0043"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4 Hattori N, Ishihara T, Shimatsu A (2016) Variability in the detection of macro TSH in different immunoassay systems. 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