Sharma, Poornima, Keerti Singh, Rekha Bhatnagar, and Rohit Jain. “Assessment of Vitamin B12 Deficiency and Associated Factors in Patients Attending Tertiary Care Hospital of Southern Rajasthan”. National Journal of Community Medicine 9, no. 10 (October 31, 2018): 740–744. Accessed May 3, 2024. https://njcmindia.com/index.php/file/article/view/806.