An Adolescent with Increased Plasma Methylmalonic Acid and Total Homocysteine

Affiliations

• ¹ Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA; xfu@chla.usc.edu.
• ² Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles, Los Angeles, CA.
• ³ Division of Neurology, Department of Pediatrics, Children's Hospital of Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA.
• ⁴ Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA.
• ⁵ Department of Pediatrics, Keck School of Medicine, University of Southern California, Los Angeles, CA.