TY - JOUR TI - The Frequency of Vitamin B12 Deficiency in Patients with Helicobacter Pylori Infection and the Relationship Between Helicobacter Pylori and Vitamin B12 Deficiency AU - Tükel, N. AU - Aliustaoglu, M. JO - EJMA PY - 2024 VL - 4 SP - 85 EP - 89 DO - 10.14744/ejma.2024.40085 ER -