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Highlights Features Helps in the formation of red blood cells

Intramuscular injections are possible more difficult if self-administered

PEOPLE WHO HAVE RARE CONDITIONS OR USE B12 & NEO B12 INJECTIONS FOR MEDICAL PURPOSES SHOULD HAVE ACCESS TO THESE INJECTIONS ON PBS SCRIPTS

After reviewing literature and conducting a two-round Delphi survey with 42 experts, a consensus emerged that emphasizes prioritizing clinical symptoms in diagnosis, with serum B12 as a screening marker supported by methylmalonic acid or homocysteine levels for additional confirmation

PMCID: PMC7158911

The two relevant routes are subcutaneous and intramuscular