Clark PM, Holder RL, Haque SM, Hobbs FD, Roberts LM, Franklyn JA (2012). "The relationship between serum TSH and free T4 in older people". Journal of Clinical Pathology. 65 (5): 463–5. doi:10.1136/jclinpath-2011-200433. PMID22287691. S2CID43886378.
Midgley JE, Hoermann R, Larisch R, Dietrich JW (2013). "Physiological states and functional relation between thyrotropin and free thyroxine in thyroid health and disease: In vivo and in silico data suggest a hierarchical model". Journal of Clinical Pathology. 66 (4): 335–42. doi:10.1136/jclinpath-2012-201213. PMID23423518. S2CID46291947.
Reichlin S, Utiger RD (1967). "Regulation of the pituitary-thyroid axis in man: Relationship of TSH concentration to concentration of free and total thyroxine in plasma". The Journal of Clinical Endocrinology and Metabolism. 27 (2): 251–5. doi:10.1210/jcem-27-2-251. PMID4163614.
Liu S, Ren J, Zhao Y, Han G, Hong Z, Yan D, Chen J, Gu G, Wang G, Wang X, Fan C, Li J (2013). "Nonthyroidal illness syndrome: Is it far away from Crohn's disease?". Journal of Clinical Gastroenterology. 47 (2): 153–9. doi:10.1097/MCG.0b013e318254ea8a. PMID22874844. S2CID35344744.
Jostel A, Ryder WD, Shalet SM (2009). "The use of thyroid function tests in the diagnosis of hypopituitarism: Definition and evaluation of the TSH Index". Clinical Endocrinology. 71 (4): 529–34. doi:10.1111/j.1365-2265.2009.03534.x. PMID19226261. S2CID10827131.
Lechan, Ronald M.; Fekete, C (2004). "Feedback regulation of thyrotropin-releasing hormone (TRH): mechanisms for the non-thyroidal illness syndrome". Journal of Endocrinological Investigation. 27 (6 Suppl): 105–19. PMID15481810.
Prummel MF, Brokken LJ, Wiersinga WM (2004). "Ultra short-loop feedback control of thyrotropin secretion". Thyroid. 14 (10): 825–9. doi:10.1089/thy.2004.14.825. PMID15588378.
Clark PM, Holder RL, Haque SM, Hobbs FD, Roberts LM, Franklyn JA (2012). "The relationship between serum TSH and free T4 in older people". Journal of Clinical Pathology. 65 (5): 463–5. doi:10.1136/jclinpath-2011-200433. PMID22287691. S2CID43886378.
Midgley JE, Hoermann R, Larisch R, Dietrich JW (2013). "Physiological states and functional relation between thyrotropin and free thyroxine in thyroid health and disease: In vivo and in silico data suggest a hierarchical model". Journal of Clinical Pathology. 66 (4): 335–42. doi:10.1136/jclinpath-2012-201213. PMID23423518. S2CID46291947.
Reichlin S, Utiger RD (1967). "Regulation of the pituitary-thyroid axis in man: Relationship of TSH concentration to concentration of free and total thyroxine in plasma". The Journal of Clinical Endocrinology and Metabolism. 27 (2): 251–5. doi:10.1210/jcem-27-2-251. PMID4163614.
Liu S, Ren J, Zhao Y, Han G, Hong Z, Yan D, Chen J, Gu G, Wang G, Wang X, Fan C, Li J (2013). "Nonthyroidal illness syndrome: Is it far away from Crohn's disease?". Journal of Clinical Gastroenterology. 47 (2): 153–9. doi:10.1097/MCG.0b013e318254ea8a. PMID22874844. S2CID35344744.
Jostel A, Ryder WD, Shalet SM (2009). "The use of thyroid function tests in the diagnosis of hypopituitarism: Definition and evaluation of the TSH Index". Clinical Endocrinology. 71 (4): 529–34. doi:10.1111/j.1365-2265.2009.03534.x. PMID19226261. S2CID10827131.
Clark PM, Holder RL, Haque SM, Hobbs FD, Roberts LM, Franklyn JA (2012). "The relationship between serum TSH and free T4 in older people". Journal of Clinical Pathology. 65 (5): 463–5. doi:10.1136/jclinpath-2011-200433. PMID22287691. S2CID43886378.
Midgley JE, Hoermann R, Larisch R, Dietrich JW (2013). "Physiological states and functional relation between thyrotropin and free thyroxine in thyroid health and disease: In vivo and in silico data suggest a hierarchical model". Journal of Clinical Pathology. 66 (4): 335–42. doi:10.1136/jclinpath-2012-201213. PMID23423518. S2CID46291947.
Liu S, Ren J, Zhao Y, Han G, Hong Z, Yan D, Chen J, Gu G, Wang G, Wang X, Fan C, Li J (2013). "Nonthyroidal illness syndrome: Is it far away from Crohn's disease?". Journal of Clinical Gastroenterology. 47 (2): 153–9. doi:10.1097/MCG.0b013e318254ea8a. PMID22874844. S2CID35344744.
Jostel A, Ryder WD, Shalet SM (2009). "The use of thyroid function tests in the diagnosis of hypopituitarism: Definition and evaluation of the TSH Index". Clinical Endocrinology. 71 (4): 529–34. doi:10.1111/j.1365-2265.2009.03534.x. PMID19226261. S2CID10827131.