GÜNDOĞDU, Ünsal 2022. The Relationship Between Vitamin B12 Levels And Anti-Thyroid Peroxidase Antibodies In Patients With Autoimmun Thyroiditis Mellitus. GEVHER NESIBE JOURNAL OF MEDICAL AND HEALTH SCIENCES. 5, 8 (Jul. 2022), 38–44. DOI:https://doi.org/10.46648/gnj.100.