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Kratzsch, J., Fiedler, G.M., Leichtle, A., Brügel, M., Buchbinder, S., Otto, L., Sabri, O., Matthes, G. and Thiery, J. (2005) New Reference Intervals for Thyrotropin and Thyroid Hormones Based on National Academy of Clinical Biochemistry criteria and Regular Ultrasonography of the Thyroid. Clinical Chemistry, 51, 1480-1486. https://doi.org/10.1373/clinchem.2004.047399

has been cited by the following article:

• TITLE: Age- and Gender-Specific Changes in Thyroid Size and Thyroid Function Test Values of Euthyroid Subjects

  AUTHORS: Tika Ram Lamichhane, Sandeep Prashad Pant, Binod Lamichhane, Chhabindra Gautam, Sharma Paudel, Binod Kumar Yadav, Hari Prasad Lamichhane

  KEYWORDS: Euthyroid Subject, Thyroid Function Test, Thyroid Hormone Levels, Thyroid Ultrasonography, Empirical Relation

  JOURNAL NAME: Journal of Biosciences and Medicines, Vol.6 No.11, November 19, 2018

  ABSTRACT: Background: The thyroid status is evaluated by two clinical diagnostic tests which are thyroid ultrasonography and thyroid function tests. The objective of this research is to critically analyze the age and gender based variations of thyroid volume and thyroid hormone levels in the hospital based euthyroid subjects. Methodology: A total of 221 euthyroid subjects aged 1 - 86 years were selected to observe the normal thyroid size by ultrasonography at Department of Radiology and the thyroid function test values (FT3, FT4 and TSH) of 2413 euthyroid subjects aged (Results: The best fitted equations with significant correlation coefficients and p Conclusion: The thyroid size first increases and then decreases whereas the thyroxin level first decreases and then increases with aging. Left lobe volume is almost same for both genders and right lobe volume is higher in males. The thyroid size in menarche and menopause periods of females is larger than that of males. Such age- and gender-specific changes recommend the new refer-ence ranges for the normal thyroid functions.