Medscape1mon
Diagnosis of cobalamin deficiency: II. Relative sensitivities of serum cobalamin, methylmalonic acid, and total homocysteine concentrations.
In the absence of hematologic relapse, the methylmalonic acid was abnormal more than twice as frequently as the serum cobalamin. We also reviewed the records of 419 consecutive patients with ...
Medscape29d
Neuropsychiatric disturbances in presumed late-onset cobalamin C disease.
that results in increased levels of methylmalonic acid and homocysteine in the blood and urine. Most patients present in the first year of life with systemic, hematological, and neurological ...