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Showing articles 0 to 2 of 2 Filter Applied: methylmalonic acid,serum (Click to remove) Vitamin B12 Deficiency:NICE Guideline Summary BMJ 385:q1019, q1262, Sands,T.,et al, 2024 Clinicopathologic Conference, Functional Vitamin B12 Deficiency from Use of Nitrous Oxide NEJM 388:1893-1900, Case 15-2023, 2023 Showing articles 0 to 2 of 2