title: Standardization of Free T4 and Harmonization of TSH Measurements: A Request for Input from Endocrinologists and Other Physicians.
authors.affiliation: Mass Spectrometry Reference Laboratory, Laboratory for Analytical Chemistry, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, Belgium.
authors.forename: Linda M
authors.initials: LM
authors.lastname: Thienpont
authors.affiliation: Clinical Chemistry and Immunology, Montefiore Medical Center, New York, N.Y., USA; Department of Pathology, Albert Einstein School of Medicine, New York, N.Y., USA.
authors.forename: James D
authors.initials: JD
authors.lastname: Faix
authors.affiliation: International Federation of Clinical Chemistry and Laboratory Medicine, Milan, Italy.
authors.forename: Graham
authors.initials: G
authors.lastname: Beastall
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