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Doctors don't routinely test for vitamin B12 levels, so vitamin B12 deficiency can go unnoticed

A meta-analysis of 12 clinical trials measuring flow-mediated vasodilation (FMD

Consistency in measurement method matters more than absolute accuracy

Mala Maini for her valuable input on manuscript drafts, Hilda Bastian for her informative blog posts ( the R&D Blue Print team at the WHO ( and COVID-NMA ( for collating information on coronavirus vaccines