Oral Cancer Risk Factor: Chew Tobacco
US$ 24.03
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Description
A pre-specified criterion was established to terminate the trial if the sample size re-estimation indicated that more than 250 participants would need to be randomised in order to detect the expected effect
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A heavy smoker, Wayne had most of his left lung removed in 1964 and died of complications from stomach cancer 15 years later
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Brain: Smoking Slowly Affects Mental and Brain Health Many smokers think cigarettes reduce stress
