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can b12 injection cause spots Are Shots Safe? Royal Palm Beach Medical Group Best Vitamin B12 Injection Sites
Description
I thought nothing more of them until speaking to a neighbor today who also felt these symptoms about 3 weeks after her initial shot

A fine needle attached to a syringe is inserted in the trigger point
Individuals at risk include vegetarians, vegans, older adults, and those with gastrointestinal disorders that affect absorption

Nature 481 , 380384 (2011)
