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Common signs include persistent fatigue (even after a full nights sleep), brain fog, mood swings or irritability, numbness or tingling in the hands or feet, and a weakened immune system
Researchers have also studied this mechanism in relation to muscle-tissue models and general markers of cellular aging
Placebo effects, expectation bias, and individual variability all confound interpretation
REFERENCES USED AS SOURCES FOR THIS PAGE: 1 Vitamin B12 injection via Cleveland Clinic
[PMID: 11799139] PubMed record related to this compound for laboratory literature review
Quality of life analysis The perception of quality of life by the patients of each arm will be assessed by comparing the EuroQol 5D scores (determined using a visual analogue scale) and the transformation of these scores into utility - based quality of life values
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