If you need more than just Methylmalonic Acid, Serum lab test - add more tests one by one. Please select an item from the autocomplete list Max stores per result: Any 1 2 3 4 5 6 7 Verbose: See search details Switch to Quest lab tests (similar) Laboratory tests search details Methylmalonic Acid, Serum (component) (remove) Stores: HealthLabs, LifeExtension, Personalabs, Private MD, RequestATest, Walk-In Lab Components: Methylmalonic Acid, Serum No results found