monthly b12 injection dosage Vitamin B12 Shots Dosage for Adults:
Description
PMID: 33171124 Cell Death Dis 2020 Jan 6;11(1):15

Pernicious Anemia : This is a specific type of anemia associated with vitamin B12 deficiency, characterized by a reduction in the number of healthy red blood cells
it's about maintaining a sterile environment to prevent contamination of your experiment

This can happen gradually, so you may not notice the signs right away
