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Notes on vitamin B12 A larger version of this table can be found in the Google spreadsheet B12 Doses and Absorption
Surgery is generally reserved for cases with progressive neurological deficits, cauda equina syndrome (a surgical emergency), or persistent symptoms despite 6 to 12 months of conservative treatment
Storage Refrigerate after reconstitution
At each time point, OD was measured by reading the optical density at 600 nm using a GENESYS 10UV Spectrophotometer (Thermo Fisher Scientific Inc., Waltham, MA, USA), while colony-forming units (CFUs) were measured by spreading aliquots of a 1:10 dilution series of the batch culture on GM-17 agarose plates and then counting formed colonies after 48 h of growth at 30 C
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