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mercury was previously used as a medical preservative in norway in two eye-drop products, but this use was phased out in 2003 when thiomersal was replaced with benzalconchloride.
12. 在挪威,汞之前作为医用防腐剂用于两种眼药水产品,不过2003年用benzalconchloride取代硫柳汞时就淘汰了这种用途。