Gyawali, Pratiksha, BhattRajendra Dev, KarmacharyaRobin Man, Vivek Pant, and Ayesha Khadka. “High Burden of Vitamin B12 Deficiency Among Adults and Elderly”. Journal of Nepal Health Research Council 20, no. 3 (March 10, 2023): 702-707. Accessed June 21, 2024. http://www.jnhrc.com.np/index.php/jnhrc/article/view/4407.