Muhammad Amin1, Jahan Sardar, Muhammad Nadeem, Shafqat Huma, Memoona Gulzar, Momal Rasheed, M. Ibrahim Khan. Frequency of Vitamin B12 Deficiency Amongst Elderly Patients Presenting with Dementia. Pakistan Journal of Medical & Health Sciences [Internet]. 2022 Aug. 18 [cited 2024 Jul. 17];16(06):705. Available from: https://pjmhsonline.com/index.php/pjmhs/article/view/2006