Progressive Weakness and Memory Impairment in a Middle-aged Man
JAMA 320:197-198, DeFilippis, E.M.,et al, 2018
A 27-year-old man with unsteady gait
Neurol 89:e120-e123, Fernandez, D.,et al, 2017
Neurologic Aspects of Cobalamin Deficiency
Medicine 70:229-245, Healton,E.B.,et al, 1991