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Description
You may experience a lightening or darkening of the affected skin, though in most cases this returns to normal after six months

[DOI] [PubMed] [Google Scholar] 48.Martinez A.R., Nunes M.B., Nucci A., Frana M.C., Jr

found similar outcomes in non-small cell lung cancer (Zhang et al., 2015)

However, more research isa needed on the efficacy of vitamin B12 shots for this condition

Low mood or irritability
