Davids, Nawaal, Mariza Hoffmann, Nasheen Naidoo, Thandiwe Manjati, and Rajiv T Erasmus. 2018. “Are We Appropriately Testing for Vitamin B12 and Folate Deficiency?”. Annals of Clinical Chemistry and Laboratory Medicine 3 (1):8-14. https://doi.org/10.3126/acclm.v3i1.15612.