Davids, Nawaal, Mariza Hoffmann, Nasheen Naidoo, Thandiwe Manjati, and Rajiv T Erasmus. “Are We Appropriately Testing for Vitamin B12 and Folate Deficiency?”. Annals of Clinical Chemistry and Laboratory Medicine 3, no. 1 (January 23, 2018): 8–14. Accessed April 26, 2024. https://www.nepjol.info/index.php/ACCLM/article/view/15612.