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JAMA network open, 2(10), e1913804

However, in other countries, the exact number can vary due to factors like production efficiency and taxation

After brushing, the specimens were kept in containers filled with artificial saliva within the incubator at a constant temperature of 37 1 C (the solution of artificial saliva was prepared in the Pharmaceutics Department at the Faculty of Pharmacy, Mansoura University, and contained 23% sodium biphosphate, 11.8% sodium chloride, 11.8% potassium chloride, and 29.5% urea with a pH of 6.8 0.2)

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