Pigmentation due to vitamin B12 deficiency. Pigmentation changes around the mouth of a boy with a deficiency of vitamin B12 (cobaltamine). Vitamins are trace nutrients that form an essential part of the diet. Vitamin B12 is used in digestion and metabolism. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 8256 px × 5504 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : |
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