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Because information regarding %LAA was not available for the second COPD cohort, we could not stratify radiographically confirmed emphysema and were only able to compare end-stage COPD to controls
*Correspondence: Xunzhe Yin [email protected] Guan [email protected] Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers
People who don't get enough of the essential vitamin can experience nausea, fatigue, dizziness or depression among other symptoms
In addition, nerve cell functions and the formation of red blood cells depend on a sufficient supply of vitamin B12
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