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2. An analysis of various fluoride prophylaxis products for free fluoride ion concentrations;Bushee;J. Dent. Child.,1971
3. The acid and metal salt catalyzed hydrolyses of PO2F2− and PO3F2−;Clark;Inorg. Chem.,1971
4. An investigation of methods proposed for the analysis of the various forms of fluoride in toothpaste;Cook;Aust. Dent. J.,1981
5. The gas chromatographic determination of fluoride in dental creams;Cropper;J. Soc. Cosmet. Chem.,1970