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Description
There are also methylmalonic acid (MMA) tests that provide a more complete analysis of the vitamin B12 available in your body

95 JonesR.ChichesterJ.MettV.JajeJ.TotteyS.MancevaS.et al

Corpening, J

Step 5 For all devices, your Sponsor submits a medical device application
Limitations of the tests for B12 Deficiency (and most other tests) Virtually all tests have limitations
