Isotope-Dilution Assay for Urinary Methylmalonic Acid in the Diagnosis of Vitamin B 12 Deficiency

DAVID B. MATCHAR
  • Annals of Internal Medicine, May 1987, American College of Physicians
  • DOI: 10.7326/0003-4819-106-5-707
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The following have contributed to this page: Dr David Bruce Matchar and Dr David Matchar