Amro, Nawaf RN, and Abbas Masalma. “Prevalence of Serum Vitamin B12 Levels Among Patients Presented to Hebron Charitable Medical Center, Palestine”. International Journal of Innovative Research in Medical Science 2, no. 11 (November 25, 2017): 1546 to 1550. Accessed May 3, 2024. https://ijirms.in/index.php/ijirms/article/view/252.