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In Saudi Arabia, oral cancer recurs in 56% of patients during the five-year period following initial diagnosis and treatment.El-Metwally says there is a pressing need to educate people about risk factors for oral cancer, such as smoking, qat and tobacco chewing, spicy food, and alcohol

S., including frontline workers, policy-makers and those who had COVID-19

Dr Ed Stephens, senior research fellow at the University of St Andrews, said: This paper confirms the potential benefits of e-cigarettes and contributes to the growing body of evidence that the risk from chemicals in vapour is far lower than in cigarette smoke when an e-cigarette is used as the manufacturer intended. Jamie Hartmann-Boyce, senior health behaviours researcher at Oxford University and managing editor of the Cochrane Tobacco Addiction Group, said: We still need more studies on the long term safety of electronic cigarettes, but this study adds to the growing body of evidence suggesting electronic cigarettes are considerably safer than smoking regular cigarettes, as is using NRT long term