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To determine the prevalence of Helicobacter pylori (H. pylori) in the salivary samples of asymptomatic subjects, the possible route of transmission and role of hygeine in dissemination of H. pylori using polymerase chain reaction. Salivary samples of 1 500 asymptomatic subjects were involved to determine the prevalence of H. pylori. DNA was extracted from the samples using phenol chloroform, cetyltrimethyl...
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