TY - GEN AU - BAKER,S J AU - IGNATIUS,M AU - JOHNSON,S AU - VAISH,S K TI - Hyperpigmentation of skin. A sign of vitamin-B12 deficiency SN - 0007-1447 PY - 1998///1101 KW - Humans KW - Hyperpigmentation KW - Pigmentation Disorders KW - Skin KW - Vitamin B 12 Deficiency KW - Vitamins N1 - Publication Type: Journal Article UR - https://doi.org/10.1136/bmj.1.5347.1713 ER -