Vitamin B12-Responsive Severe Leukoencephalopathy and Autonomic Dysfunction in a Patient With "Normal" Serum B12 Levels
JNNP 81:1369-1371, Graber,J.J.,et al, 2010
Neurologic Aspects of Cobalamin Deficiency
Medicine 70:229-245, Healton,E.B.,et al, 1991