vitamin b12 injections after gastric sleeve Absorption Following Bariatric Surgery B12 Deficiency After Gastric Sleeve:
Description
In most cases, superficial vein thrombosis resolves without treatment, but some cases evolve into DVT with a risk of pulmonary embolism

doi: 10.1172/JCI9238

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It may also be used for the vitamin B12 absorption test (Schilling test)

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