Adil N, Mehraj A, Khan J, Bhutta S, Jamil M, Aslam M. CHRONIC DIARRHOEA: NOT A RARE PRESENTATION OF VITAMIN B 12 DEFICIENCY. J Ayub Med Coll Abbottabad [Internet]. 2024 Apr. 15 [cited 2025 May 3];36(1):155-9. Available from: https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/13026