Zeynel Abidin Sayiner, Nida Uyar, and Abdullah Emre Yıldırım, “Relationship between Pancreas Exocrine Insufficiency and Cardiac Autonomic Neuropathy in Patients with Type 2 Diabetes Mellitus”, Turkish Journal of Gastroenterology, vol. 32, no. 5, pp. 481–487, May 2021.