Nizami MMA, Mirza SA, Khan FA. FREQUENCY OF VITAMIN B12 DEFICIENCY IN PATIENTS WITH HELICOBACTER PYLORI GASTRITIS: Vitamin B12 Deficiency. PAFMJ [Internet]. 2012 Jun. 30 [cited 2024 May 12];62(2):203-5. Available from: https://pafmj.org/PAFMJ/article/view/1663