Vitamin B12 Deficiency in a 29-Year-Old Woman
Neurol 97:e643-e646, Huddar, A.,et al, 2021
Pernicious Anaemia
BMJ 369:m1319, Mohamed, M.,et al, 2020
Proton Pump Inhibitor and Histamine 2 Receptor Antagonist Use and Vitamin B12 Deficiency
JAMA 310:2435-2442, Lam, J.R.,et al, 2013