History [edit] Descriptions of deficiency effects [edit] Between 1849 and 1887, Thomas Addison described a case of pernicious anemia, William Osler and William Gardner first described a case of neuropathy, Hayem described large red cells in the peripheral blood in this condition, which he called "giant blood corpuscles" (now called macrocytes), Paul Ehrlich identified megaloblasts in the bone marrow, and Ludwig Lichtheim described a case of myelopathy
Correcting a low level takes that particular obstacle off the table
Heres the protocol our team follows without exception: Prepare Your Workspace: Start with a clean, uncluttered surface
2025, doi: 10.1007/s12178-025-09990-7
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