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Cholecalciferol OR Copper OR Vitamin A OR Folic Acid OR Iron OR Thiamine Ion OR Pyridoxine OR Cyanocobalamin OR Doconexent OR Docusate OR Iodine OR Magnesium OR Zinc OR Ascorbic Acid OR Riboflavin OR ".Alpha.-Tocopherol" OR Niacin
- ... causes including: Blood loss Iron deficiency Deficiences of vitamin B12 or folic acid Bone marrow failure (for example, from radiation, toxin, ...