Altun, Ozgur, Yucel Arman, Nur Karakutuk Yuztas, Selay Arslan, Ayca Zeynep Kutlu, Pinar Saner Demir, Murat Akarsu, and Tufan Tukek. 2021. “Endotrophin Levels in Clinically-Stable Chronic Obstructive Pulmonary Disease”. Annals of Medical Research 28 (12):2145-49. http://www.annalsmedres.org/index.php/aomr/article/view/3991.