Ключевые слова: anemia, atomic, atoms, b12a, carbon, chemical, chemistry, cobalamin, cobalt, composition, compound, cyanide, deficiency, drawing, factor, flat, formula, hydrogen, hydroxocobalamin, hydroxocobalamine, hydroxycobalamin, hydroxycobalamine, icon, intrinsic, line, malabsorption, molecular, molecule, nitrogen, ohcbl, oxygen, phosphorus, poison, poisoning, skeletal, structure, supplement, vegetarian, vitamer, vitamin,