Here's some technical assistance with keeping up with new research papers on B12 or PA.
You can do this by by setting up alerts via either Google Scholar or PubMed. You select a keyword and new studies mentioning that term will then pop into your email inbox as soon as they released!
More details on how to do it at:
Google Scholar:
nihlibrary.nih.gov/resource...
PubMed:
nihlibrary.nih.gov/resource...
I've been using the Google Scholar alerts recently and find them very useful. Quite straighforward to setup.