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Description
The underlying reason for this toxicity is most likely because neuronal development and survival is based on BCL-XL activity (66)

10.1038/s41419-021-03811-8 30 SunP.ZhangK.HassanS
Individual Variability The effectiveness of B12 injections can vary significantly between individuals

Many patients find it helpful to get a Methyl B12 injection once a week
