Ulasli, Sevinc Sarinc, Serife Savas Bozbas, Zeynep Erayman Ozen, Berna Akinci Ozyurek, and Gaye Ulubay. “Effect of Thyroid Function on COPD Exacerbation Frequency: A Preliminary Study”. Multidisciplinary Respiratory Medicine 8, no. 9 (October 1, 2013). Accessed May 19, 2025. https://mrmjournal.org/index.php/mrm/article/view/576.