El-Haddad, Boutros, Issam El Bizri, K James Kallail, Rosalee E Zackula, and Jan M Hoffman. “Fatigue and TSH Levels in Hypothyroid Patients”. Kansas Journal of Medicine 5, no. 2 (May 29, 2012): 51–57. Accessed April 14, 2025. https://journals.ku.edu/kjm/article/view/11407.