en Original Type 2 diabetes mellitus, Olfactory Function, Aging, Disease Duration, Comorbidities, Sniffin' Sticks Test 655 661 https://ijorl.mums.ac.ir/article_25128.html Benny Mart Sani bennymartsani1903@gmail.com 110218 Yes Department of Otorhinolaryngology – Head and Neck Surgery, Faculty of Medicine, Universitas Sumatera Utara, Jl. Dr. Mansur No. 5, Medan, 20155, INDONESIA. Andrina Yunita Murni Rambe bennyms.1919@gmail.com 110219 No Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Universitas Sumatera Utara, Jl. Dr. Mansur No. 5, Medan, 20155, INDONESIA Ashri Yudhistira bennymartsani@rocketmail.com 110220 No Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Universitas Sumatera Utara, Jl. Dr. Mansur No. 5, Medan, 20155, INDONESIA Siti Nursiah bennymartsani@ymail.com 110221 No Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Universitas Sumatera Utara, Jl. Dr. Mansur No. 5, Medan, 20155, INDONESIA M. Pahala Hanafi Harahap martsanibenny@yahoo.com 110222 No Department of Otorhinolaryngology - Head and Neck Surgery, Faculty of Medicine, Universitas Sumatera Utara, Jl. Dr. Mansur No. 5, Medan, 20155, INDONESIA Taufik Ashar bestteamedan@gmail.com 110223 No Faculty of Public Health, Universitas Sumatera Utara, Jl. Universitas No. 21, Medan, 20155, INDONESIA