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Vitamin B-12 deficiency symptoms may include: strange sensations, numbness, or tingling in the hands, legs, or feet difficulty walking (staggering, balance problems) anaemia a swollen, inflamed tongue difficulty thinking and reasoning (cognitive difficulties), or memory loss weakness fatigue While an experienced physician may notice the symptoms and be able to detect a vitamin B-12 deficiency with a good interview and physical exam, a blood test is needed to confirm the condition
2012;6:S10420
Included in these options for both race and ethnicity were unknown/not reported, which was chosen for patients by the researcher for those patients who chose not to select a race or ethnicity
Acknowledgements These studies were supported by NIH NCI grant CA166440 (HVH) and a Department of Defense Prostate Cancer Research Program Early Investigator Award (UD)
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