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2. The estimation of the bactericidal power of the blood;Miles;J Hyg(London),1938
3. Fluid mechanics;Streeter,1985
4. Bacterial biofilm: a source of contamination in dental air-water syringes;Mayo;Clin Prevent Dent,1990
5. Influence of biofilms on microbial contamination in dental unit water;Whitehouse;J Dent,1991