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4,5 Dietary insufficiency, pernicious anemia (i.e., an autoimmune process that reduces available intrinsic factor and subsequent absorption of vitamin B 12 1,2,6,7 ), and long-term use of metformin or acid-suppressing medications have been implicated in B 12 deficiency

My heart feels like its having palpitations but thats kind of normalish

Successful Surgical Management of Bilateral Temporomandibular Joint Ankylosis in a Pediatric Patient Case Report: Fracture C1 & C2 (Type 3) vertebrae with Atlanto-Axial Dislocation (AAD) Diagnostic Image of Fistuloplasty Journal scan: A review of images in clinical medicine of immediate clinical significance, harvested from major international journals Chapter 26

Post-injection inflammation can happen right after your injection, or it can develop hours after the jab, says Jeng

Rapid Response Report: Summary with Critical Appraisal