Vitamin B12 is needed in microscopic amounts, but a shortage can have major effects on health and energy. The vitamin was first linked to a lifesaving liver treatment for pernicious anemia nearly 100 ...
aKenya Medical Research Institute (KEMRI), Centre for Geographic Medicine Research—Coast, KEMRI–Wellcome Trust Research Programme, Kilifi, Kenya bOpen University, KEMRI–Wellcome Trust Research ...
aDepartment of Health Statistics and Information Systems, World Health Organization, Geneva, Switzerland bDepartment of Nutrition for Health and Development, World Health Organization, Geneva, ...
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