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DWI, UK · Key to 0.49 mg/l 0.5 to 0.99 mg/l 1.0 to 1.5 mg/l Area of health authority fluoridation scheme Typical fluoride levels in zones during 2012 Berwick-Upon-Tweed

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Page 1: DWI, UK · Key to 0.49 mg/l 0.5 to 0.99 mg/l 1.0 to 1.5 mg/l Area of health authority fluoridation scheme Typical fluoride levels in zones during 2012 Berwick-Upon-Tweed