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 Level 4
 
 B - Blood and blood forming organsB03 - Antianemic preparationsB03A - Iron preparationsB03AE - Iron in other combinations
 
 B03AE01 - Iron, Vitamin B12 and Folic AcidB03AE02 - Iron, multivitamins and Folic AcidB03AE03 - Iron and multivitaminsB03AE04 - Iron, multivitamins and mineralsB03AE10 - Various combinations
 
 
 
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