Kahraman, Hasan, Bilal Sen, Nurhan Koksal, Metin Kilinç, and Sefa Resim. “Erectile Dysfunction and Sex Hormone Changes in Chronic Obstructive Pulmonary Disease Patients”. Multidisciplinary Respiratory Medicine 8, no. 9 (October 9, 2013). Accessed July 7, 2024. https://mrmjournal.org/index.php/mrm/article/view/578.