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Key Takeaways Residency training after medical school takes 3-7 years depending on specialty, with internal medicine requiring 3 years while neurosurgery demands 7 years plus optional fellowships
Shots are often used for those with pernicious anemia or trouble absorbing B12
Frequently Asked Questions How long does it take to feel the effects of B12 injections
If you require high-quality DSIP for your research in the UK, explore our range of peptides designed for scientific rigour and innovation.
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