Progressive Weakness and Memory Impairment in a Middle-aged Man
JAMA 320:197-198, DeFilippis, E.M.,et al, 2018
Clinicalpathologic Conference, Vitamin B12 Deficiency due to Pernicious Anemia
NEJM 366:1626-1633, Case 13-2012, 2012
A Synd of Methylmal Acid, Homocystinuria, Megaloblas. Anemia & Neurol Abnor. in a Vit B-12-def Breast-fed Infant of veget
NEJM 299:317, Higginbottom,M.C., 1978